2×2 Scalar Matrix Calculator

            from math import *

def matrix_scalar_2x2(n, a, b, c, x) -> float:
    return (n * a)

assert abs(matrix_scalar_2x2(2, 1, 2, 3, 4) - 2) < 1e-6 * max(1.0, abs(2))
          

            #include <assert.h>
#include <math.h>

double matrix_scalar_2x2(double n, double a, double b, double c, double x) {
    return (n * a);
}

int main(void) {
    const double expected = 2;
    const double actual = matrix_scalar_2x2(2, 1, 2, 3, 4);
    assert(fabs(actual - expected) < 1e-6 * fmax(1.0, fabs(expected)));
}
          

            #include <cassert>
#include <cmath>
#include <numbers>

double matrix_scalar_2x2(double n, double a, double b, double c, double x) {
    return (n * a);
}

int main() {
    constexpr double expected = 2;
    const double actual = matrix_scalar_2x2(2, 1, 2, 3, 4);
    assert(std::fabs(actual - expected) < 1e-6 * std::fmax(1.0, std::fabs(expected)));
}
          

x86-64 NASM · System V ABI · Linux · SSE2 with libm where required

            ; double matrix_scalar_2x2(double n, double a, double b, double c, double x)
; Linux x86-64 NASM · System V ABI · first eight doubles in xmm0–xmm7
global matrix_scalar_2x2
section .text

matrix_scalar_2x2:
    push rbp
    mov rbp, rsp
    sub rsp, 48
    movsd [rbp-8], xmm0
    movsd [rbp-16], xmm1
    movsd [rbp-24], xmm2
    movsd [rbp-32], xmm3
    movsd [rbp-40], xmm4
    movsd xmm0, [rbp-8]
    mulsd xmm0, [rbp-16]
    movsd [rbp-48], xmm0
    movsd xmm0, [rbp-48]
    leave
    ret
          

            function result = matrix_scalar_2x2(n, a, b, c, x)
    result = (n * a);
end
          

            ClearAll[mwCalculate];
mwCalculate[n_, a_, b_, c_, x_] := (n * a);