Crate hmath

Modules

utils

Macros

determinant_hack

impl_from_for_ref

impl_trait_for_general

impl_trivial_try_from

impl_tryfrom_for_ref

Structs

BigInt

Matrix

It’s very naively implemented, thus very slow.

Polynomial

[3, 4, 5] -> 3x^2 + 4x + 5

Ratio

UBigInt

Enums

ConversionError

MatrixError

Functions

cbrt_iter

It returns cbrt(x). It gets more accurate as iter gets bigger.

common_denom

a = v1 / v3, b = v2 / v3 where the return value is (v1, v2, v3)

cos_iter

It returns cos(x). It gets more accurate as iter gets bigger.

cubic_2_points

f(a) = v1, f(b) = v2, f’(a) = v3, f’(b) = v4
It ignores v2 and v4 if a == b.

e_const

pre-calculated value of e. It’s equal to e_iter(15).

e_iter

It returns an approximate value of E. It gets more and more accurate as k gets bigger.

exp_iter

It returns e^x. It gets more accurate as iter gets bigger.

from_points

p: Vec<(x, y)> where f(x) = y

from_points_generic

p: Vec<(x, y)> where f(x) = y

gcd_bi

gcd_ubi

inspect_ieee754_f32

You may find this function useful when you’re dealing with ieee 754 numbers.
This function returns (neg, exp, frac), which means n is (-1)^(neg) * 2^(exp) * (1 + frac/2^23) regardless of denormalization.
It returns (false, i32::MIN, 0) when n is 0.

inspect_ieee754_f64

You may find this function useful when you’re dealing with ieee 754 numbers.
This function returns (neg, exp, frac), which means n is (-1)^(neg) * 2^(exp) * (1 + frac/2^52) regardless of denormalization.
It returns (false, i32::MIN, 0) when n is 0.

linear_2_points

f(a) = v1, f(b) = v2
If a == b, it returns a const function.

ln2_const

pre-calculated value of ln2. It’s equal to ln2_iter(11).

ln2_iter

It returns an approximate value of ln(2). It gets more and more accurate as k gets bigger. For now, k should be less than 200.

ln_iter

It returns ln(x). It gets more accurate as iter gets bigger. It panics when x is less than 0.

log_iter

It returns log(x) with base base. It gets more accurate as iter gets bigger. It panics when x or base is less than or equal 0.

pi_const

pre-calculated value of pi. It’s equal to pi_iter(7).

pi_iter

It returns an approximate value of PI. It gets more and more accurate as k gets bigger. For now, k should be less than 255.

pow_iter

It returns a^b. It gets more accurate as iter gets bigger. If b is an integer, try Ratio::pow_i32 instead. It panics when a is less than 0. 0^0 is 0.

quadratic_3_points

f(a) = v1, f(b) = v2, f(c) = v3
If the input has inconsistent values (eg. f(3) = 4, f(3) = 5), it ignores an arbitrary one.

sin_iter

It returns sin(x). It gets more accurate as iter gets bigger.

sqrt_iter

It returns sqrt(abs(x)). It gets more accurate as iter gets bigger.

tan_iter

It returns tan(x). It gets more accurate as iter gets bigger.