Subtract

Format: A - B

Arguments: [num] A, B Any real numbers, complex numbers, vectors, or matrices to subtract

Returns: [num] A minus B

Description: Subtraction is carried out using one of the following methods as is appropriate for the input data:

If A is an array and B is a single number, B is subtracted from every element in A:

If A is a single number and B is an array, every element in B is subtracted from A:

If both A and B are arrays with the same dimensions, the corresponding elements in A and B are subtracted:

In all cases, elements are subtracted using complex subtraction where appropriate:

Examples: 8-3 = 5

(4+3*I)-(1-I) = 3+4i

[11,12,13,14]-10 = [1,2,3,4]

10-[11,12,13,14] = [-1,-2,-3,-4]

[1,2,3,4]-[1,4,2,1] = [0,-2,1,3]

[[1,2],[3,4]]-[[1,4],[2,1]] = [[0,-2],[1,3]]

See Also: Minus, Add