Function fastEval

test/compute-engine/performance.test.ts:96–116

()

}

function fastEval() {
  const ce = new ComputeEngine();

  const expr = ce.parse('ax^2+bx+c')!; // like $$ ax^2+bx+c $$
  const vars = { a: 2, b: 3, c: 4 };

  // Factor out substitution of constants
  const expr3 = expr.subs(vars).N();

  ce.precision = 'machine';
  ce.strict = false;

  let y = 0;
  const startTime = performance.now();
  for (let x = 0; x <= Math.PI; x += 0.01) {
    ce.assign('x', x);
    y += Number(expr3.re);
  }

  return performance.now() - startTime;
}

function compiledEval() {
  const ce = new ComputeEngine();