MX_AT – Get Matrix/Vector element

Block SymbolLicensing group: STANDARD

Function Description
The function block MX_AT returns the value (output value) of the matrix element at the i-th row and j-th column or the i-th vector element.

The output reference yMV is always set to the corresponding input reference uMV to the connected matrix/vector.

The error flag E is set to on if:

the reference uMV is not defined (i.e. input uMV is not connected),
the zero based row index $i < 0$ or $i \geq m$ , where m is the number of rows,
the zero based column index $j < 0$ or $j \geq n$ , where n is the number of columns. Note that j must be $0$ for a vector.

Inputs

uMV	Input reference to a matrix or vector	Reference
i	Row index of the element $↓$ 0	Long (I32)
j	Column index of the element $↓$ 0	Long (I32)

Outputs

yMV	Output reference to a matrix or vector	Reference
value	Value of element at position (i,j)	Long (I32)
E	Error indicator	Bool

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