Which function used to use in M-Script to remove the variables

Variable name in M-Script 1Tn007 - numbers are allowed to start as variable name

Which function used to use in M-Script to remove the variables

Answer 1

[Chunru]

a = 3;
b = 4;
% use clear to remove variables
clear a

whos

  Name              Size            Bytes  Class             Attributes

  ans               1x1                 8  double                      
  b                 1x1                 8  double                      
  cmdout            1x33               66  char                        
  gdsCacheDir       1x14               28  char                        
  gdsCacheFlag      1x1                 8  double                      
  i                 0x0                 0  double                      
  managers          1x0                 0  cell                        
  managersMap       0x1                 8  containers.Map              

a

Unrecognized function or variable 'a'.

Answer 2

[Walter Roberson]

It is not possible to create a variable with a name similar to 1Tn007

What can happen is that if you load() a .mat that was generated by a third-party tool, and the .mat had a variable that is a struct, then the struct can end up with invalid field names. If the invalid names were the names of variables, then MATLAB will refuse to load that variable.

If you are are trying to load a .mat with invalid names, then see https://www.mathworks.com/matlabcentral/fileexchange/42274-loadfixnames-loads-a-mat-file-fixing-invalid-names