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Definition of Inkscape FontsFonts are specially designed typefaces created for enhancing the creativity and appearance of the artworks. The user works with various genres of Fonts to elevate their designs. Inkscape Fonts are no different than other program Fonts. Fonts are particularly installed in the operating system and are a part of the existing OS. Accordingly, the user will comprehend the same set of Fonts in every program, installed on the computer including Inkscape. However, the user can download the Fonts from the internet and install them in Inkscape.
How Fonts work in Inkscape?A Font does not work with Individual software. Fonts are the characteristics of the text that includes numbers, letters, and special characters as well. In Inkscape, the user will find all the Fonts that are installed in the operating system. Furthermore, the user can download and install the Fonts and place the Font file in the Font’s folder of the operating system respectively.
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To work with Fonts in Inkscape there are two methods to install and create custom Fonts according to the demands of the user. The interface of Inkscape Fonts is user-friendly and quick to respond to the users. The users can download Serif, Sans-serif, and Mono Fonts from the internet as well. Or they can create their custom Fonts in Inkscape too. Fonts are Universal in nature. Any Font that is used on Linux can also be used on Windows or Mac operating systems and the other way round also.
Method 1:In this method, the users will learn to download a Font from the internet and install and create a text with that specific Font in Inkscape. Following are the steps to do the same:
1. Search on the web for Free downloadable Fonts
3. Download any Font from the website.
6. Restart or launch Inkscape.
7. Create a New File
8. Go to the text tool
9. Type a text.
11. Search the Font that you have downloaded by either scrolling through the list or typing the name of the Font.
13. You will see that the downloaded Font has been applied to the text.
Method 2In this method, the users will learn how to create custom Fonts on the Inkscape program and use these fonts on other platforms as well. The fonts that are created on the software are chúng tôi Format. The users can convert the fonts in other formats using a font convertor with the help of the following steps:
1. Launch Inkscape
3. A dialog box will appear, select Typography Canvas from the list.
4. An art board will appear to create custom texts
9. Now, with the help of Bezier tool create a letter
10. Once the letter is created, select GET CURVES FROM SELECTION.
12. You can also view the sample text from the option PREVIEW TEXT.
13. Once, the font is created, you can save the file in chúng tôi Inkscape format.
14. To convert the file in .ttf format, use an online text font convertor like CONVERTIO.CO.
15. Convert and install the font to use the custom-created font on other platforms.
ConclusionSummarizing the article, the user will learn all about Fonts and how to download and construct special fonts in Inkscape. Even though, the process of making Fonts can be confusing, but once learned, it can benefit the users to a great extent.
Fonts will always be a major attribute in designing creative and innovative artworks. Therefore, learning their use and properties will help the users in future endeavors.
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How To Fix Corrupted Fonts In Windows 11/10
An everyday user of Windows isn’t concerned by the fonts its UI uses, or at least I am not. If you are not one of them, you can always download custom fonts and place them in the relevant folders for texts to be shown the way you want. However, many users have observed instances when downloading and using custom fonts results in the UI showing weird symbols where text is supposed to be. This, obviously, can be very annoying and it’s probably because the font you’ve downloaded is corrupted. Today, we will be explaining how you can fix corrupted fonts in Windows 11/10.
How to fix corrupted Fonts in Windows 11/10To rebuild, reset or fix corrupted Fonts on your Windows 11/10 computer, do the following:
Reset default font settings using the GUI
Reset default font settings using the Registry
Manually recreate font cache on your PC
1] Reset default font settings using the GUIOpen the Control Panel by searching for it from the Search Pane on your Taskbar. Here, select to view Large Icons and select the Fonts section.
2]Reset default font settings using the RegistryThe same process as above can be replicated by creating a ‘.reg’ with the contents to revert to the default font settings. Here’s what you have to do:
Open the Run dialog box and in the empty space type ‘Notepad.exe’. Press Ctrl+Shift+Enter to open an elevated Notepad
Once there, paste the following source code there:
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFonts] "Segoe UI (TrueType)"="segoeui.ttf" "Segoe UI Black (TrueType)"="seguibl.ttf" "Segoe UI Black Italic (TrueType)"="seguibli.ttf" "Segoe UI Bold (TrueType)"="segoeuib.ttf" "Segoe UI Bold Italic (TrueType)"="segoeuiz.ttf" "Segoe UI Emoji (TrueType)"="seguiemj.ttf" "Segoe UI Historic (TrueType)"="seguihis.ttf" "Segoe UI Italic (TrueType)"="segoeuii.ttf" "Segoe UI Light (TrueType)"="segoeuil.ttf" "Segoe UI Light Italic (TrueType)"="seguili.ttf" "Segoe UI Semibold (TrueType)"="seguisb.ttf" "Segoe UI Semibold Italic (TrueType)"="seguisbi.ttf" "Segoe UI Semilight (TrueType)"="segoeuisl.ttf" "Segoe UI Semilight Italic (TrueType)"="seguisli.ttf" "Segoe UI Symbol (TrueType)"="seguisym.ttf" "Segoe MDL2 Assets (TrueType)"="segmdl2.ttf" "Segoe Print (TrueType)"="segoepr.ttf" "Segoe Print Bold (TrueType)"="segoeprb.ttf" "Segoe Script (TrueType)"="segoesc.ttf" "Segoe Script Bold (TrueType)"="segoescb.ttf" [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFontSubstitutes] "Segoe UI"=-Save this file by any name but make sure that the file extension is ‘.reg’. Select the File Type to be ‘All Files’ or else it will be saved as a ‘.txt’ file only
Save this file in an accessible location and once done, visit that location.
3] Manually recreate font cache on your PCA situation where you’re seeing abnormal fonts on your PC can also arise if your PC’s font cache has been corrupted. If that is the case, you’re going to have to rebuild the Font Cache file manually.
Since the Font Cache folder is protected, you’re going to have to take down the security measures to access it. Here are the steps you need to follow:
2] Repeat the aforementioned steps for the service named Windows Presentation Foundation Font Cache 3.0.0.0.
3] Once done, close the Services Manager and open Windows Explorer. Copy and paste the following path there:
C:WindowsServiceProfilesHere, you’ll see a bunch of files.
Press Ctrl+A to select them all and press Delete.
4] Now, navigate to the location below, select the chúng tôi file and delete it.
C:WindowsServiceProfilesLocalServiceAppDataLocalOnce done, reboot your PC and enable the services you’d previously disabled from the Services Manager.
How do I enable ClearType?Read: How to rebuild Font cache in Windows
Where can I find corrupted Fonts?There’s a very easy process in place to detect the presence of corrupt fonts on your Windows PC. Here’s how it goes:
Open the Fonts folder on your PC. Typically, it is found in the Windows folder of your C: drive
If a font file shows its size to be ‘0’, that file is corrupted. You can uninstall and download a fresh copy of this font
We hope this post is going to help you be better equipped to deal with corrupt fonts from here on out.
How Polyfit Function Work In Numpy With Examples?
Introduction to NumPy polyfit
In python, Numpy polyfit() is a method that fits the data within a polynomial function. That is, it least squares the function polynomial fit. For example, a polynomial p(X) of deg degree fits the coordinate points (X, Y). This function returns a coefficient vector p that lessens the squared error in the deg, deg-1,…0 order. However, a RankWarning is issued by polyfit when the fit of the least-squares is poorly conditioned. This means that, as a result of numerical error, the best fit is not properly defined. The outcome can be enhanced by replacing x with x-mean(x) or minimizing the polynomial degree.
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Syntax and parameters of NumPy polyfitBelow is the syntax of the polyfit method in numpy.
numpy.polyfit( x , y , deg , rcond = None , full = False, w = None, cov = False)Parameters:
x: This parameter is array-like which is of the shape of (M,) size.
y: This parameter is array-like which is of the shape of (M,) or (M, K) size.
– Represents the M sample y-coordinate value of (x[i], y[i]).
Deg: int value which is the fitting polynomial degree.
rcond: float value which is considered as optional.
-This parameter represents the relative condition value of the fit.
– Singular numbers that are less than this relative condition to the highest singular value can be avoided.
-len(x)*ep is the default value of rcond.
-Here, ep is the relative precision of the type float.
-In most cases, 2e-16 is the value.
full: A boolean value which is optional
-This is considered as a switch that is responsible for the nature of value returned.
-If the value is false, it returns the coefficients.
– If the value is true, it returns the diagnostic data from the singular value decomposition.
w: This parameter is array-like which is of the shape of (M,) size.
-This parameter weights to put to the sample point’s y-coordinates.
-In the case of Gaussian uncertainties, 1/sigma has to be used instead of 1/sigma**2
cov: A boolean value which is optional
-This parameter returns the estimate as well as the estimated covariance matrix.
-If the value of full is true, this parameter won’t return.
Return value:
p: This parameter is an ndarray which is of shape ( deg + 1, ) or ( deg + 1,K)
-This is the polynomial coefficient which has the highest power mentioned first.
– If the value of y is 2-dimensional, the kth dataset coefficient will be set as p[:,k].
Moreover, the list [residuals, rank, singular_values, rcond] will be returned only if the value of full is true. Here, residuals are the residual of the least square fit; Rank is the scaled vandermonde coefficient matrix rank, singular value, and the value of rcond.
V: This value is a ndarray which is of shape M, M) or (M, M, K).
– This value will be returned only if the value of full is false and the value of cov is true.
How polyfit function work in NumPy?Now, let us see how to fit the polynomial data with the help of a polyfit function from the numpy standard library, which is available in Python.
Assume that some data is available in the polynomial. This is to use the function polyfit() for fitting the data available in the polynomial.
A polynomial with a degree of 1 is the simplest known polynomial.
It is mentioned using the equation y=m*x+c
Similar to that, the degree 2 quadratic equation is denoted by the equation
Y = ax**2 + bx + cIn this case, the polyfit method will find all the m, c coefficients for degree 1. This will calculate the a, b, and c coefficients for degree 2.
Below is a sample code for a simple line.
Code:
import matplotlib.pyplot as mp import numpy as np x = np.linspace( -10 , 10 , 5 ) y = 2*x + 5 mp.plot( x , y , 'o' )If the function polyfit() is also added, code changes as shown below.
import matplotlib.pyplot as mp import numpy as np x = np.linspace( -10 , 10 , 5 ) y = 2*x + 5 coeff = np.polyfit(x,y,2) xn = np.linspace(-20,20,100) yn = np.poly1d(coeff) mp.plot( xn,yn(xn),x,y,'o')Note:
In some cases, fitting polynomial coefficients is intrinsically badly conditioned. For example, it is during the cases when the polynomial degree is higher or the interval of sample points is poorly centered. Moreover, the quality of the fit has to be always checked in the cases mentioned above. If the polynomial fits are not that satisfactory, a good alternative will be splined.
Examples of NumPy polyfit Example #1Python program to fit a polynomial function
Code:
import numpy as np import matplotlib.pyplot as mp np.random.seed(12) x = np.linspace( 0, 1, 25 ) y = np.cos(x) + 0.3*np.random.rand(25) p = np.poly1d( np.polyfit(x, y, 4) ) t = np.linspace(0, 1, 250) mp.plot(x, y, 'o', t, p(t), '-') mp.show()Output:
In this program, first, import the libraries matplotlib and numpy. Set the values of x, y, p, and t. Then, using the values of this x, y, p, and t, plot the polynomial by fitting it.
Example #2Python program to fit a polynomial function of a simple line
Code:
import numpy as np import matplotlib.pyplot as mp np.random.seed(12) x=np.linspace(-20,20,10) y=2*x+5 coeff = np.polyfit(x,y,2) xn = np.linspace(-20,20,100) yn = np.poly1d(coeff) mp.plot( xn,yn(xn),x,y,'o')Output:
In this program, also, first, import the libraries matplotlib and numpy. Set the values of x and y. Then, calculate the polynomial and set new values of x and y. Once this is done, fit the polynomial using the function polyfit().
ConclusionNumpy polyfit() is a method available in python that fits the data within a polynomial function. Here, it least squares the function polynomial fit. That is, a polynomial p(X) of deg degree is fit to the coordinate points (X, Y). In this article, different aspects such as syntax, working, and examples of polyfit() function are explained in detail.
Recommended ArticlesThis is a guide to NumPy polyfit. Here we discuss How polyfit functions work in NumPy and Examples with the codes and outputs. You may also have a look at the following articles to learn more –
How To Add Custom Fonts To Command Prompt In Windows 11/10
However, the Windows command prompt has limited scope for customization. While it is possible to make a few customizations to the command prompt user interface, like, adding transparency, changing colors, etc., it still looks like the old DOS interface with the limited flexibility for customizing according to the user’s preference. Moreover, the command line interpreter application has very few choices for changing the font. The font selection is limited to a few choices from 2 to 7 depending on the Windows version.
While there is no direct provision to add custom fonts and change the fonts in the Windows Command prompt, you can however now add custom fonts to the Command Prompt by making use of the registry.
In this article, we explain how to add the custom fonts to the command prompt in Windows 11/10. But before we start, it is important to note that the Windows command prompt can only support monospace fonts. Monospace fonts are fixed-width font where the spacings and letters occupy the same width in contrast to the variable width fonts. It is worth mentioning that, monospace fonts are extremely useful for writing the computer program source code. The character’s fixed-width aids programmers to keep track of special character strings in the program code. Once you have found the suitable monospace font, users can enable the custom fonts in Command Prompt by tweaking the Registry. Follow the below steps to add the custom fonts to the command prompt.
Find & install a suitable monospace fontThe Windows command prompt has mostly two choices for the font. It can be either Lucida or Raster. To add custom fonts, one must install a font on a system using web services like FontSquirrel, Google Fonts, and others.
As mentioned earlier, the Command Prompt will recognize only monospace fonts. Additionally, Microsoft also specifies that the custom font you add to the command shell window must be FF_MODERN if it is TrueType font and OEM_CHARSET if it is a font other than the TrueType font. Microsoft also adds the criteria that the fonts you choose for the command prompt cannot have a negative A or C space, and it cannot be an italic style font.
Once you find the suitable monospace font, download the font and install it on your Windows system.
Once the font is installed, the next step is to add them to the command prompt using the registry editor.
Add the custom font to the RegistryWindows OS does not allow users to add the custom fonts to command prompt directly through the user interface. To make the monospace font available in Command prompt, you need to first add the information of the installed fonts to the registry.
Open Run box, type regedit, and press Enter.
Next, navigate to the following path:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionConsoleTrueTypeFontIn the right side of the registry panel, you will see the list of fonts that are used by command prompt with the respective unique name value like 0, 00,01, etc.
Now select the string value and name the string value with a unique number. If you already have a string value with 00, then name the new string value as 000. Just note that the value you enter should be some unique number.
Read: How to get Mac-like smooth fonts on Windows.
Add the custom font to the Command PromptNavigate to the Font tab in the Command Prompt Properties window.
Once done you must be able to use the command prompt with your favorite installed font. One can also change the font size for good readability.
It is worth noting that, if you cannot see the font in the font list of the Properties window in Command prompt, it is likely that the font you have chosen is either not supported by your Windows version or you have added a font that is not a monospace font.
Want to make the Command Prompt transparent?
How Does The Null Function Work In C++ With Examples?
Introduction to C++ null
The null function is used to assign value to the variable; this can be treated as the default value for the variable defined in many programming languages. Null functions can be used to assign value to a pointer that is not pointing to any address and contain any garbage value, so the null function will assign them a special value called ‘NULL’, which means they are now null pointer. In this topic, we are going to learn about C++ null.
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Syntax
This is very simple to assign a null value to the variable in C++; we just need to do this at the time of initialization only. This variable then turns to be treated as the Null pointer. Below see the syntax to understand this better and used while programming see below;
int main () { int *your_ptr_name = NULL; }In the above syntax, we are using the NULL value here to assign to a pointer. First, we have to define the pointer, and then we can initialize it with NULL. Sample practice syntax for more understanding see below;
int main () { int *myptr = NULL; } How does the null function work in C++?As of now, we know that we use Null functions to assign some special value to the pointer variable. By the use of this, we can give them a logical value when they are not pointing to any address in the memory. That’s why it is also known as a special value to the pointer. Also, we know that pointer holds the memory address, so if we want them to point to some other value, in that case, we can use NULL here. But we have to use this while initiation of the pointer. Now we will see one example and understand its working how it actually works; for more detail, see below;
Example:
using namespace std; int main () { int *myptr1 = NULL; int *myptr2= NULL; int *myptr3 = NULL; if(!myptr1) { cout << “demo value for myptr ” << myptr1 ; } return 0; }
In this example, we create three different pointers, and all of them point to the NULL here. So as we can see, we have initialized the value for the variable at the time of declaring the variables. After this, we are making one check here to check and print the value of the pointer. If the statement coming out to be right, then the print statement will be executed; otherwise, it will return. If we see it will assign a default value of ‘0’ to the pointer. So a null can be an integer value as well when it is not pointing to the memory address. In the if statement above, as you can see pointer is pointing to null, but here it got converted into Boolean false, and if the value for any of the pointers is not null, then it will convert into Boolean true.
So in this way, we can test our pointers as well. Null functions are nothing but a way to assign value to the pointer variable in c++. We can also do dereferencing of our null pointers in c++, but this will lead to unusual behavior of the program. this is because dereferencing means go back to the previous state where it is pointing to before initiation, but if we try to do this in our code, a null pointer still points nowhere because it has no memory address attached with it.
Points to be remembered while working with the NULL functions in c++ see below;
2) If the pointer does not point to any memory address in C++, it does not point to null; we will use NULL functions to assign them value.
3) If we assign a value to a pointer using null functions, then they will convert to Boolean true or false depending on the value they are holding. This is because the null pointer can be integer also.
Examples of C++ nullGiven below are the examples of C++ null:
Example #1In this example, we will see how to initialize the null value to the pointer using the NULL function in C++; this is nothing but the special value we can assign at the time of initialization. There is no particular syntax to do this.
Code:
using namespace std; int main () { cout<<“Demo for null functions in c++”; cout<<“n”; int *myptr1 = NULL; int *myptr2= NULL; int *myptr3 = NULL; cout << “value of the first variabel is::: ” << myptr1 ; cout<<“n”; cout << “value of the second variabel is::: ” << myptr2 ; cout<<“n”; cout << “value of the third variabel is::: ” << myptr3 ; return 0; }
Output:
Example #2In this example, we are going to see how to make a conditional statement while using a NULL pointer in your program and how they change the value while checking them. After the statement, we are assigning them a new value to the point.
Code:
using namespace std; int main () { int var1 =20; int var2 =30; int var3 =40; cout<<“Demo for null functions in c++”; cout<<“n”; int *myptr1 = NULL; int *myptr2= NULL; int *myptr3 = NULL; cout<<“Value before null functions :::”; cout<<“n”; cout << “value of the first variable is before ::: ” << myptr1 ; cout<<“n”; cout << “value of the second variable is before :::” << myptr2 ; cout<<“n”; cout << “value of the third variable is before :::” << myptr3 ; if(!myptr1){ myptr1 = &var1; cout << “value after initialization is ::” ; cout<<“n”; cout << “value of the first variable is after ::: ” << myptr1 ; cout<<“n”; } if(!myptr2){ myptr2 = &var2; cout << “value after initialization is ::” ; cout<<“n”; cout << “value of the second variable is after ::: ” << myptr2 ; cout<<“n”; } if(!myptr3){ myptr3 = &var3; cout << “value after initialization is ::” ; cout<<“n”; cout << “value of the third variable is after ::: ” << 3 ; cout<<“n”; } return 0; }
Output:
ConclusionHence we can use null functions to assign value to the variable; null values are important when our pointer is not pointing to any memory address to avoid the unusual behavior while programming, so null functions or null assigning to a pointer is used to assign a default value when they are not pointing anywhere in the memory address.
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How Does Median Work In Postgresql?
Introduction to PostgreSQL Median
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Syntax and ParameterBelow is the syntax of the median in PostgreSQL:
1. Find the median using percentile_disc (0.5)
Select percentile_disc(0.5) (Percentile disc with 0.5 used to find median from the table column.)within group (order by name_of_table.name_of_table);2. Find the median by creating a function and aggregate
SELECT median (We have calling aggregate function with specifying column name) (name_of_column) AS (alias of column name) FROM name_of_table;Parameter:
Select: We use the “select” operation to retrieve a specified column from the table from which we are calculating the median value.
Name of the column: This is defined as a column name from which we are retrieving the median value.
Name of the table: The name of the table refers to the specific table from which we are calculating the median value based on the column name.
Percentile disc (0.5): We are using percentile_disc (0.5) to find the median from the column. There is no function available like the median, so we are using percentile_disc (0.5) instead of the median.
Median: This is defined as finding the median from the table column. We have to find the median value on the basis of the column which we have used in the median.
Alias of column name: This is defined as using another name of a column displayed in the output.
Within group: The “within group” clause is used to determine the median value from a table column in chúng tôi clause is used to calculate the percentile value from the specified group.
How does Median Work in PostgreSQL?
The median is the calculated value representing the middle point of a series used in the query. We can also use column name instead of series in PostgreSQL.
If suppose we have used a series value as an even number, then the median will return the mean of two values as the median in PostgreSQL.
The median value in PostgreSQL is more representative as compared to the mean value in PostgreSQL.
If suppose we have used the series value as an odd number, then the median will return the middle value as the median in PostgreSQL.
The below example shows that if we have used a series value as an odd number, then the median will return the middle value as the median.
In the below example, the stud1 table contains 11 records, i.e., odd number so the median will return as the 6th number of value from the table.
We have used the id table to find the median from the column.
select * from stud1; select percentile_disc(0.5) within group (order by chúng tôi from stud1;
We create a user-defined median function in PostgreSQL and subsequently use it later.
While creating a function, it will show the median value in PostgreSQL of an even number of series.
We can also calculate the median in PostgreSQL by using the 50th percentile value because there is no built-in function available in PostgreSQL to calculate the median.
We use a within-group clause and order by clause with percentile (0.5). The main use of order by clause in percentile is to sort the value as per order before calculating the median in PostgreSQL.
ExamplesWe are using the function as median_function1 and aggregate as median_function2 to describe an example of the median in PostgreSQL.
Below is the structure of aggregate and function.
sf median_function1 da+ median_function2
Also, we are using the median_function table to describe an example of the median. Below is the median_function table and data.
select * from median_function; d+ median_function;Find the median by creating a function and aggregate.
The below example shows that find the median by creating a function and aggregate. We have already created a function name as median_function1 and an aggregate name as median_function2.
We are using the id column with aggregate as median_function2 to find the median from the median_function table.
SELECT median_function2(id) AS median_value_id FROM median_function;Find the median of even number column values by creating a function and aggregate.
The below example shows that find the median of even number column values by creating a function and aggregate.
We are using the function name as median_function1 and the aggregate name as median_function2.
delete from median_function where id = 12; SELECT median_function2(id) AS median_value_id FROM median_function; select * from median_function;Find the median by using percentile_disc (0.5).
The example below shows that find the median using percentile_disc (0.5).
We use the id column to find the median from the median_function table.
insert into median_function values (11, 111, 'ABC', 'Delhi'); select percentile_disc(0.5) within group (order by median_function.id) from median_function; select * from median_function; Recommended ArticlesWe hope that this EDUCBA information on “PostgreSQL Median” was beneficial to you. You can view EDUCBA’s recommended articles for more information.
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