Author: will

• Cube_Root

  maths/combinatorics/arithmetic

  Returns the cube root of the argument, which may be negative.

• dayOfYear

  units/date

  Computes the Gregorian day of the year from a serial Julian date.

• hypergeo

  maths/special/hypergeometric

  Confluent hypergeometric function

• hypergeo_1f1a

  maths/special/hypergeometric

  Asymptotic formula for hypergeometric function 1f1a

• hypergeo_1f1p

  maths/special/hypergeometric

  Power series summation for confluent hypergeometric function 1f1p.

• hypergeo_1f2

  maths/special/hypergeometric

  Confluent hypergeometric function 1f2.

• 
  J

  maths/special/bessel/j

  Bessel function of the first kind of integer order.

• J_recurrence

  maths/special/bessel/j

  BesselJ order reduction through backward recurrence.

• J_series

  maths/special/bessel/j

  Ascending power series approximation of Bessel function of the first kind.

• logGammaSum

  maths/special/gamma

  Returns the natural logarithm of the gamma function of the sum of two numbers.

• now

  units/time

  Returns the current date and time as a serial Julian date and time. <span align="right" style="background-color:99FF99"><strong>Excel: NOW</strong></span>

• YearlyFreq

  finance/banking

  Yearly frequency to be used in financial calculations