MathExtension

Library "MathExtension"
Math Extension.

log2(_value) calculate log base 2
Parameters:

• _value: float, number.

Returns: float, base 2 logarithm of value.

fmod(numerator, denominator) float remainder of x divided by y.
Parameters:

• numerator: float, division numerator.
  
• denominator: float, division denuminator.

Returns: float

fractional(value) computes the fractional part of the argument value.
Parameters:

• value: float, value to compute.

Returns: float, fractional part.

integral(value) Find the integral of value.
Parameters:

• value: float, value.

Returns: float.

atan2(value_x, value_y) Approximation to atan2 calculation, arc tangent of y/ x in the range (-pi,pi) radians.
Parameters:

• value_x: float, value x.
  
• value_y: float, value y.

Returns: float, value with angle in radians. (negative if quadrante 3 or 4)

hypotenuse(value_x, value_y) Multidimensional euclidean distance from the origin to a point.
Parameters:

• value_x: float, value x.
  
• value_y: float, value y.

Returns: float

near_equal(value_a, value_b, relative_tolerance, absolute_tolerance) Determine whether two floating point numbers are near in value.
Parameters:

• value_a: float, value to compare with.
  
• value_b: float, value to be compared against.
  
• relative_tolerance: float, default (1.0e-09).
  
• absolute_tolerance: float, default (0.0).

Returns: bool

factorize(value) Factorize a number.
Parameters:

• value: int, positive number.

Returns: int

permutations(options_size, combo_size) Number of ways to choose k items from n items without repetition and with order.
Parameters:

• options_size: int, number of items to pool from
  
• combo_size: int, number of items to be chosen

Returns: int

combinations(options_size, combo_size) Find the total number of possibilities to choose k things from n items
Parameters:

• options_size: int, number of items to pool from
  
• combo_size: int, number of items to be chosen

Returns: int

版本注释:

v2

Added:
ndigit() Find the number of digits in a int, float, valid number string.
Parameters:

• value (int, float or string), value.
  

Returns: int, number of digits.