The - Command
Returns the difference of two numbers.
value1 - value2
Menu Location
Press the [-] key to paste -.
This command works on all calculators.
1 byte
The - operator subtracts two numbers, variables, or expressions. Order of operations dictates that it's calculated after * and /, and at the same time as +.
The - operator can also be used on lists and matrices. For the most part, it behaves in the intuitive way, distributing the operation over each element. However, subtracting a number from a matrix (or a matrix from a number) behaves differently: the number is only subtracted along the main diagonal of the matrix. For "normal" subtraction that applies to every element of the matrix, see .-.
:1-1
0
:5→x
:2-3x
-13
:[1,2;3,4]-100
[-99 2]
[3 -96]