Sub

arithmetic-functions subtract(-)

syntax

  • sub(a, b)
  • a - b

definition

sub(a, b) or a - b results in the element-by-element subtraction of the values of data-item b from the corresponding values of data item a.

If the result of the subtraction exceeds the MinValue or MaxValue of the value-type, an error is generated. Use the sub_or_null function if a null value is requested in these cases.

applies to

Data items with Numeric or Point value-type

conditions

  1. Domain units of the arguments must match or be void (literals or parameters can be subtracted from data items of any domain).
  2. Arguments must have matching:

example 

1. attribute<float32> AminB (ADomain) := sub(A, B);
2. attribute<float32> AminB (ADomain) := A - B;
A B AminB
0 1 -1
1 -1 2
-2 2 -4
3.6 1.44 2.16
999 111 888

ADomain, nr of rows = 5

See also