66 lines
1.0 KiB
JavaScript
66 lines
1.0 KiB
JavaScript
//! This script simulates multi-dimensional matrix calculations.
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const SIZE = 50;
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fn new_mat(x, y) {
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let row = [];
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row.pad(y, 0.0);
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let matrix = [];
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matrix.pad(x, row);
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matrix
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}
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fn mat_gen() {
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const n = global::SIZE;
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const tmp = 1.0 / n / n;
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let m = new_mat(n, n);
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for i in 0..n {
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for j in 0..n {
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m[i][j] = tmp * (i - j) * (i + j);
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}
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}
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m
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}
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fn mat_mul(a, b) {
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let b2 = new_mat(a[0].len, b[0].len);
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for i in 0..a[0].len {
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for j in 0..b[0].len {
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b2[j][i] = b[i][j];
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}
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}
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let c = new_mat(a.len, b[0].len);
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for i in 0..c.len {
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for j in 0..c[i].len {
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c[i][j] = 0.0;
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for z in 0..a[i].len {
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c[i][j] += a[i][z] * b2[j][z];
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}
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}
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}
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c
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}
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const now = timestamp();
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const a = mat_gen();
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const b = mat_gen();
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const c = mat_mul(a, b);
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/*
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for i in 0..SIZE) {
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print(c[i]);
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}
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*/
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print(`Finished. Run time = ${now.elapsed} seconds.`);
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