Module math 

Tiny f64 math facade that works on both the default (std) build and the no_std opt-in. core::f64 doesn’t expose sqrt / sin / cos / etc. — those methods live in std::f64’s platform-dependent math library — so the no_std build has to forward to the pure-Rust libm crate instead. The std build stays dep-free and calls the native f64 methods directly.

Every bop math builtin and ops::div / ops::rem’s float path goes through here rather than calling x.sqrt() / libm::sqrt(x) at the point of use, so the rest of the codebase stays #[cfg]-free.

Feature

The only math-related feature is no_std. Leave it off (the default) to get std::f64’s native math with no external deps. Enable it — with default-features = false, features = ["no_std"] — when targeting bare-metal / embedded / edge wasm. no_std pulls in the tiny pure-Rust libm crate.

Functions

ceil

⌈x⌉ — smallest integer ≥ x, as a float.

cos

cos(x) (radians).

exp

e^x.

floor

⌊x⌋ — largest integer ≤ x, as a float.

ln

Natural log.

powf

base ** exp for floats.

round

Round half-away-from-zero (matches f64::round).

sin

sin(x) (radians).

sqrt

√x.

tan

tan(x) (radians).

trunc

Truncate toward zero — drop the fractional part.