math.Rand
Returns a pseudo-random number in the half-open interval [0.0, 1.0).
- Syntax
- math.Rand
- Returns
- float64
Usage
The math.Rand function returns a pseudo-random number in the half-open interval [0.0, 1.0). Combine it with other functions to generate random integers or floats within a given interval, as shown in the examples.
Examples
{{ math.Rand }} → 0.6312770459590062A random integer in the closed interval [0, 5]:
{{ math.Rand | mul 6 | math.Floor }}A random integer in the closed interval [1, 6]:
{{ math.Rand | mul 6 | math.Ceil }}A random float, with one digit after the decimal point, in the closed interval [0, 4.9]:
{{ div (math.Rand | mul 50 | math.Floor) 10 }}A random float, with one digit after the decimal point, in the closed interval [0.1, 5.0]:
{{ div (math.Rand | mul 50 | math.Ceil) 10 }}Last updated:
October 21, 2026
:
content: Apply style guide to math functions (658ef2b60)
Improve this page