To take derivatives of a polynomial, you can use dxPolynomial() function. The polynomial is represented as an array, where each element is [coefficient, power]. For example, y = 3x+2 is represented as [[3, 1], [2, 0]].
import { dxPolynomial } from 'mz-math';
const x = 10;
// y = 3x+2
const polynomial = [[3, 1], [2, 0]];
const decimalPlaces = 2; // optional
const result = dxPolynomial(x, polynomial, decimalPlaces);