WolframLang: Arithmetic Basics

By Xah Lee. Date: . Last updated: .

here's the syntax for basic arithmetic.

Addition

(* short syntax *)
3+2

(* FullForm syntax *)
Plus[3, 2]

Substraction

3-2

(* FullForm syntax *)
Plus[3,-2]

Multiplication

3 * 2

(* FullForm syntax *)
Times[3, 2]

Multiplication can also be done with a space between numbers. 

3 2

Division

3/2. == 1.5

(* FullForm syntax *)
Times[3, Power[2., -1]] == 1.5

3/2 === 3/2

(*
return as is.
when integer is divided by another integer, result is an exact fraction.
*)

(* to get approximate number, wrap it with N[] *)
N[3/2] === 1.5

Power

3^2

(* FullForm syntax *)
Power[3, 2]

Remainder, modular arithmetic

(* remainder, or modular arithmetic *)
Mod[5, 2]

Testing even/odd

EvenQ[4] === True

OddQ[3] === True

WolframLang: Number