MX_AT – Get Matrix/Vector element

Block SymbolLicensing group: STANDARD
PIC

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 m, where m is the number of rows,
  • the zero based column index j < 0 or j 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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