Matrix Operations; Mat Assignment Statements - IBM 5100 Basic Reference Manual

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Example
For instance, in this example:
0290 USE A(9,4), T, C
an array (A) with nine rows of four columns each is assigned to the common
storage area. In addition, the scalar variables T and C are also assigned to the
common storage area.
MATRIX OPERATIONS
In the 5100, an array can contain either numeric or character data, while a matrix
can contain only numeric data. Before being used in MAT statements, arrays and
matrices must have been previously defined, either implicitly or explicitly in a
DIM or USE statement.
MAT ASSIGNMENT STATEMENTS
MAT assignment statements allow you to assign values to elements of an array. The
value assigned can be derived from any of the following array expressions. Each
array expression is discussed in detail later.
Array Expression
Meaning
(e) Scalar value
A Simple array
A+B Matrix addition
A-B Matrix subtraction
A*B
Matrix multiplication
(e) * A
Scalar multiplication
IDN Identity function
INV (A)
Inverse function
TRN (A) Transpose function
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