Integers
Integers are whole numbers, numbers without a fractional part. Examples include -123 and 5. The default value of integers (int type) is 0. Several standard arithmetic operators and functions are available to work with integers, including the following:
+9 // 9
--9 // 9
9 + 4 // 13
9 - 4 // 5
9 * 4 // 36
9 / 4 // 2.25 (result is a real number, not an integer number)
9 div 4 // 2 (9 / 4 = 2.25, so 4 fits at most two whole times in 9)
9 mod 4 // 1 (the remainder of 9 div 4)
pow(2, 4) // 16 (2 to the power of 4, or 2 * 2 * 2 * 2)
abs(-9) // 9 (absolute value)
min(9, 4) // 4 (minimum value)
max(9, 4) // 9 (maximum value)Integer values can be compared to other integer values:
x < y // less than
x <= y // less than or equal to
x = y // equal to
x != y // not equal to
x >= y // larger than or equal to
x > y // larger thanThe next lesson explains how to define ranged integers.