Crate fixed_trigonometry

Expand description

No-STD fixed-point numeric implementation of trigonometric functions in Rust.

It utilizes the fixed library to allow flexibility in fixed point sizes and precisions.

The library mixed-num has these functions implemented as traits.

The library NDSP support fixed point numbers in vectors, with various implemented operations.

Example

use fixed_trigonometry::*;
use fixed::{types::extra::U28, FixedI32};
 
let arg = atan::atan( FixedI32::<U28>::from_num(0.6)/FixedI32::<U28>::from_num(0.4) );
assert_eq!{ arg.to_num::<f32>(), 0.9782037 };

Modules

Functions

cos

Calculate cosine using a Taylor approximation of cos(x).

powi

Rase fixed number to an integer-valued power. base^power.

sign

Get the sign of the argument with a unit value. Zero is of positive sign.

sin

Calculate sin(x) using a Taylor approximation of sin(x).

wrap_phase

Wrapps θ to the -π=<x<π range.