@phaserjs/phaser/math/mat2d/Mat2dSubtract.js

Phaser 4

import { Matrix2D } from "./Matrix2D";
export function Mat2dSubtract(a, b, out = new Matrix2D()) {
  return out.set(a.a - b.a, a.b - b.b, a.c - b.c, a.d - b.d, a.tx - b.tx, a.ty - b.ty);
}