Can i convert math.js object into JavaScript function?

Question

I'm developing simple js neural network and need to create javascript function (derivative of entered by user) before learning starts.

I know about evaluate(), but i think it'll be slowly than simple function.

That is what i want:

const derivative = math.derivative('x^2/sin(2x)', 'x');
const derivative_func = derivative.please_stay_func();
...
while(1) alert(derivate_func(12)) //:) alert result of (2 * 12 * Math.sin(2*12) - 2 * Math.pow(12, 2) * Math.cos(2*12)) / Math.pow(sin(2*12), 2)

Is it real? And maybe i'm not right about speed. Maybe there is some better ways - write here.

Answer 1

i am on mobile, please edit this

maybe this is want you want to do

const countThings = (customValue) ==>{
let x = 'x^2/sin(x)';
let y = 'x';
 x = math.parse(x)
y = math.parse(y)
return math.derivative(x, y).evaluate({x:customValue});}

console.log(countThings(12))

and don't do while(1) alert because it will keep alerting