Author: CodeCogs

• CDF

  statistics/distributions/continuous/beta

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

• 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>

• 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/pipes/water_hammer
• Partial

  maths/calculus/differential

  An Introduction to Partial Differential Equations

• 
  Submerged Orifice

  engineering/fluid_mechanics/orifice/geometry

  Discharge through a submerged orifice