72 lines
1.0 KiB
Plaintext
72 lines
1.0 KiB
Plaintext
const SIZE = 50;
|
|
|
|
fn new_mat(x, y) {
|
|
let row = [];
|
|
row.pad(y, 0.0);
|
|
|
|
let matrix = [];
|
|
matrix.pad(x, row);
|
|
|
|
matrix
|
|
}
|
|
|
|
fn mat_gen(n) {
|
|
let m = new_mat(n, n);
|
|
let tmp = 1.0 / n / n;
|
|
|
|
for i in range(0, n) {
|
|
for j in range(0, n) {
|
|
m[i][j] = tmp * (i - j) * (i + j);
|
|
}
|
|
}
|
|
|
|
m
|
|
}
|
|
|
|
fn mat_mul(a, b) {
|
|
let m = a.len;
|
|
let n = a[0].len;
|
|
let p = b[0].len;
|
|
|
|
let b2 = new_mat(n, p);
|
|
|
|
for i in range(0, n) {
|
|
for j in range(0, p) {
|
|
b2[j][i] = b[i][j];
|
|
}
|
|
}
|
|
|
|
let c = new_mat(m, p);
|
|
|
|
for i in range(0, c.len) {
|
|
let ci = c[i];
|
|
for j in range(0, ci.len) {
|
|
let b2j = b2[j];
|
|
ci[j] = 0.0;
|
|
|
|
for z in range(0, a[i].len) {
|
|
let x = a[i][z];
|
|
let y = b2j[z];
|
|
ci[j] += x * y;
|
|
}
|
|
}
|
|
c[i] = ci;
|
|
}
|
|
|
|
c
|
|
}
|
|
|
|
let now = timestamp();
|
|
|
|
let a = mat_gen(SIZE);
|
|
let b = mat_gen(SIZE);
|
|
let c = mat_mul(a, b);
|
|
|
|
/*
|
|
for i in range(0, SIZE) {
|
|
print(c[i]);
|
|
}
|
|
*/
|
|
|
|
print(`Finished. Run time = ${now.elapsed} seconds.`);
|