[−][src]Trait zkp_u256::MulAdd
Fused multiply-add. Computes (self * a) + b
with only one rounding
error, yielding a more accurate result than an unfused multiply-add.
Using mul_add
can be more performant than an unfused multiply-add if
the target architecture has a dedicated fma
CPU instruction.
Note that A
and B
are Self
by default, but this is not mandatory.
Example
use std::f32; let m = 10.0_f32; let x = 4.0_f32; let b = 60.0_f32; // 100.0 let abs_difference = (m.mul_add(x, b) - (m*x + b)).abs(); assert!(abs_difference <= 100.0 * f32::EPSILON);
Associated Types
Loading content...Required methods
Loading content...Implementations on Foreign Types
impl MulAdd<i32, i32> for i32
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impl MulAdd<u32, u32> for u32
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impl MulAdd<i8, i8> for i8
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impl MulAdd<f32, f32> for f32
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impl MulAdd<f64, f64> for f64
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impl MulAdd<usize, usize> for usize
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type Output = usize
pub fn mul_add(
self,
a: usize,
b: usize
) -> <usize as MulAdd<usize, usize>>::Output
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self,
a: usize,
b: usize
) -> <usize as MulAdd<usize, usize>>::Output
impl MulAdd<i64, i64> for i64
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impl MulAdd<u8, u8> for u8
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impl MulAdd<isize, isize> for isize
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type Output = isize
pub fn mul_add(
self,
a: isize,
b: isize
) -> <isize as MulAdd<isize, isize>>::Output
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self,
a: isize,
b: isize
) -> <isize as MulAdd<isize, isize>>::Output