For expressions of the form 1 erf x use the complementary error function erfc instead.
Error function matlab.
This type of function must be defined within a file not at the command line.
This function uses the arguments keyword which is valid for matlab versions r2019b and later.
This function accepts real arguments only.
The simplest approach is to use an if or switch statement to check for a specific condition and then issue an error or warning.
When erf x is close to 1 then 1 erf x is a small number and might be rounded down to 0.
Return forces matlab to return control to the invoking program before it reaches the end of the script or function.
In matlab functions are defined in separate files.
Matlab supports both error and warning messages.
The first creates an error condition while the second creates a lesser warning condition.
If you want to compute the error function for a complex number use sym to convert that number to a symbolic object and then call erf for that symbolic object.
For expressions of the form 1 erf x use the complementary error function erfc instead.
Functions operate on variables within their own workspace which is also called the local workspace separate from the workspace you access at the matlab command prompt which is called the base workspace.
Try catch statements allow you to catch and respond to any error.
The easiest way is to use the error and warning functions.
This substitution maintains accuracy.
This substitution maintains accuracy.
The name of the file and of the function should be the same.
Instead replace 1 erf x with erfc x.
Often you store a function in its own file.
In that case the best practice is to use the same name for the function and the file in this example fact m since matlab associates the program with the file name.
You have a number of ways to create exceptions based on application conditions.
Calling erf for a number that is not a symbolic object invokes the matlab erf function.
Define a function that restricts input to a numeric vector that contains no inf or nan elements.