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CMatrix:Set
The Set method adds or changes the value of the member at a specified CMatrix index.
| CMatrix:Set( n, m, value ) | 
 n is the row index to set, beginning at 1.
    n is the row index to set, beginning at 1.
 m is the column index to set, beginning at 1.
    m is the column index to set, beginning at 1.
 value is the target value to set.
    value is the target value to set.
The following script fragment sets 2 of the CMatrix members. The values of 2 members are them printed, showing an invalid index returning the value 0:
| M = CMatrix:new() | -- create a CMatrix | 
| M:Set( 4, 2, 50.5) | -- set the member at index [4][2] | 
| M:Set( 1, 5, 22.5) | -- set the member at index [1][5] | 
| Printf("A[4][2]= %lg",M:Get(4,2)) | -- result: M[4][2] = 50.5 | 
| Printf("A[1][2]= %lg",M:Get(1,2)) | -- result: M[1][2] = 0 (doesn't exist)s |