RSD

Member Of Menu: 
Array
Argument Types: 
Array
Result Type(s): 
Array
Invertible: 
No
Valid In Expression: 
Yes
Stack Diagram: 
Array1 Array2 Array3 Array4

This operation calculates the residual of its inputs which is:

Array1 - Array2 × Array3

If Array3 is an approximation to a solution of Array2 × X = Array1, then this provides a correction to improve that solution.

There are many requirements for the input values:

  • Array1 and Array3 must either both be vectors or both be matrices.
  • If Array1 and Array3 are both matrices, they must have the same number of columns.
  • If Array1 is a matrix, then Array1 must have the same number of rows as in Array2.
  • If Array1 is a vector, then the number of values in Array1 must be the same as the number of rows in Array2.
  • Array2 must be a matrix.
  • If Array3 is a matrix, then the number of rows of Array3 must be the same as the number of columns of Array2.
  • If Array3 is a vector, then the number of values of Array3 must be the same as the number of columns of Array2.