Module coil-stdlib

`num`

Float functions such as sqrt and sin are auto-imported from prelude::math; this module adds the rest. Powers are the ** operator.

Part of coil-stdlib. spool projects get it automatically; with plain coil, pass --root ~/.coil/stdlib/src.

Import what you use (use path::* is not allowed):

use num::{PI, E};

Constants#

Name	Description
`PI`	The circle constant π, as a `float`.
`E`	Euler’s number e, the base of `ln`, as a `float`.
`TAU`	A full turn τ = 2π, as a `float`.

Name	Description
`abs`	Returns the absolute value of `x`.
`min`	Returns the smaller of `a` and `b` (`a` when they are equal).
`max`	Returns the larger of `a` and `b` (`a` when they are equal).
`round`	Rounds `x` to the nearest whole number; halves round away from zero.
`clamp`	Returns `x` limited to the range `lo..=hi`.
`signum`	Returns `-1`, `0` or `1` by the sign of `x`.
`gcd`	Returns the greatest common divisor of `a` and `b`, which should be non-negative.
`lcm`	Returns the least common multiple of `a` and `b`, which should be non-negative; `0` when either is `0`.
`trunc`	Removes the fractional part of `x`, rounding toward zero.
`fract`	Returns the fractional part of `x`, `x - trunc(x)`; it has the sign of `x`.
`is_nan`	Returns `true` when `x` is NaN (`0.0 / 0.0`, `sqrt(-1.0)`, …).
`is_infinite`	Returns `true` when `x` is positive or negative infinity.
`is_finite`	Returns `true` when `x` is neither NaN nor infinite.
`rem_euclid`	Returns the remainder of `a / b` that is never negative: `0 <= r < abs(b)`.
`div_euclid`	Returns the quotient that goes with `rem_euclid`: `a == div_euclid(a, b) * b + rem_euclid(a, b)`.
`hypot`	Returns `sqrt(a * a + b * b)`, the length of the hypotenuse.