Function belongsToDomain

Maths/BisectionMethod.js:17–20

(x, f)

const findRoot = (a, b, func, numberOfIterations) => {
  // Check if a given  real value belongs to the function's domain
  const belongsToDomain = (x, f) => {
    const res = f(x)
    return !Number.isNaN(res)
  }
  if (!belongsToDomain(a, func) || !belongsToDomain(b, func))
    throw Error("Given interval is not a valid subset of function's domain")