Author: CodeCogs

• accruedInterest

  finance/banking

  Finance functions

• angularDistance

  maths/geometry/spherical

  Returns the "distance" in radians (about the spheres centre) between two positions.

• asympt_expn

  maths/approximation/series

  Evaluate Del(a) + Del(b) - Del(a+b).

• beta_reg

  maths/special/gamma

  The regularized incomplete Beta integral

• beta_reg_inv

  maths/special/gamma

  Inverse of the incomplete (regularized) beta integral.

• billBondEquiv

  finance/banking

  Return the bond-equivalent yield for a treasury bill. <span align="right" style="background-color:99FF99"><strong>Excel: TBILLEQ</strong></span>

• billYield

  finance/banking

  Calculate the yield for a treasury bill. <span align="right" style="background-color:99FF99"><strong>Excel: TBILLYIELD</strong></span>

• 
  Carnot Cycle

  engineering/thermodynamics

  The ideal thermodynamic cycle

• CDF

  statistics/distributions/continuous/beta

  Returns the area from zero to x under the beta density.

• celerity

  engineering/fluid_mechanics/waves

  The phase velocity of a wave (also known as 'wave celerity')

• 
  Chezy Equation

  engineering/fluid_mechanics/fundamentals

  Mean flow velocity within pipes with turbulent flow

• corners

  maths/geometry

  The number of corners found on regular shapes

• couponNumber

  finance/banking

  Compute the number of coupons payable between settlement and maturity. <span align="right" style="background-color:99FF99"><strong>Excel: COUPNUM</strong></span>

• 
  critical_depth_inf

  engineering/geotechnics

  Calculates the critical depth for failure of an infinite slope

• 
  Cubic

  maths/approximation/interpolation

  Interpolates a given set of points using cubic spline fitting.

• DateString

  units/date

  Unit functions

• dec_to_oct

  computing/base

  Converts a decimal number into octal number

• 
  deflection_pp

  engineering/structures

  Beam deflection due to a point load with two pin jointed supports at either end.

• 
  deflection_s

  engineering/structures

  Beam deflection due to a point load with two pin jointed supports at either end.

• detect_speech

  strings/search

  Checks for speech marks at the current offset and moves to the corresponding end of the speech marked block

• 
  Discrete

  maths/approximation/regression

  Approximates a discrete function using least squares polynomial fitting.

• errorFnC

  maths/special

  The Complementary Error Function.

• gcd

  maths/combinatorics/arithmetic

  Compute the greatest common divisor of two values. <span align="right" style="background-color:99FF99"><strong>Excel: GCD</strong></span>

• group_celerity

  engineering/fluid_mechanics/waves

  The velocity of a wave group (also known as 'group celerity')

• interestNominal

  finance/banking

  Return the nominal annual interest rate. <span align="right" style="background-color:99FF99"><strong>Excel: NOMINAL</strong></span>

• interestSecurity

  finance/banking

  Return the interest rate for a fully invested security. <span align="right" style="background-color:99FF99"><strong>Excel: INTRATE</strong></span>

• 
  Introduction

  engineering/fluid_mechanics/orifice

  Introduction to orifice

• Introduction

  engineering/fluid_mechanics/pipes/water_hammer
• inverse

  maths/combinatorics/permutations

  Calculates the inverse of the given permutation.

• is_prime

  maths/discrete/number_theory

  This function determines whether n is a prime number or not.