Source code for hal.maths.utils

# -*- coding: utf-8 -*-

"""Tools realtive to maths """



[docs]def get_percentage_relative_to(val, other):
    """Finds percentage between 2 numbers

    :param val: number
    :param other: number to compare to
    :return: percentage of delta between first and second
    """
    val = float(val)
    other = float(other)
    ratio = val / other - 1

    return ratio * 100.0




[docs]def divide(numerator, denominator):
    """Handles errors of division

    :param numerator: Numerator
    :param denominator: Denominator
    :return: division value
    """

    try:
        return float(numerator) / float(denominator)
    except:
        return float("nan")