Arithmetic

2 + 2;

Unsurprisingly, the result is 4. Because PyScheme is reading, evaluating and printing expressions individually in a loop, it needs a semicolon in this top level expression to signify the end of an expression. For example:

2 + 2
+ 2; // 6

Standard operators are

• + addition
• - subtraction and unary negation
• * multiplication
• / division
• % modulus
• ** exponentiation

Currently F♮ only supports integer arithmetic but that is likely to change soon.

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