Irucka Embry's Miscellaneous Functions
Relative error
Remainder After Division (GNU Octave/MATLAB compatible)
Inverse secant (in degrees) [GNU Octave/MATLAB compatible]
Inverse sine (in degrees) [GNU Octave/MATLAB compatible]
Cosecant (in degrees) [GNU Octave/MATLAB compatible]
Coefficient of variation (CV)
Density of Saturated Liquid Water
Zigrang-Sylvester Equation
Vatankhah Equation
Design of Packed Column Air Strippers
Inverse cosine (in degrees) [GNU Octave/MATLAB compatible]
Inverse cotangent (in degrees) [GNU Octave/MATLAB compatible]
Inverse cosecant (in degrees) [GNU Octave/MATLAB compatible]
Approximate error
Annual value given Future value (Engineering Economics)
Annual value given Future value [continuous] (Engineering Economics)
Annual value given Gradient value (Engineering Economics)
Annual value given Present value (Engineering Economics)
Annual value given Present value [continuous] (Engineering Economics)
"Two-argument arc-tangent" (in degrees) [GNU Octave/MATLAB compatible]
Inverse tangent (in degrees) [GNU Octave/MATLAB compatible]
Benefit-Cost Ratio (Engineering Economics)
Composite CN (Curve Number) with Connected Impervious Area
Accurately calculate the Colebrook-White equation to obtain the Darcy-...
Cotangent (in degrees) [GNU Octave/MATLAB compatible]
Compound Interest Charged (Engineering Economics)
Compound Interest Paid (Engineering Economics)
Concrete Mix Design for Structural Lightweight Concrete
Concrete Mix Design for Normal Strength (Normal-weight) Concrete
Construction Decimal
Construction Decimal Engineering (LibreCAD Style)
Construction Fraction
Cosine (in degrees) [GNU Octave/MATLAB compatible]
Absolute or Dynamic Viscosity for Liquid Water
Effective Interest rate (Engineering Economics)
Conversion of Engineering Survey Measurements to Decimal Degrees (KY a...
Conversion of Engineering Survey Measurements to Decimal Degrees (KY a...
Conversion of Latitude/Longitude Coordinates to Engineering Survey Mea...
Calculate the Distance between Engineering Survey Points
Swamee-Jaine Equation
Calculate the Distance between Engineering Survey Points (Length or Nu...
Calculate the Station Distance between Engineering Survey Points
Laminar Flow Equation
Moody Equation
Romeo, et. al. Equation
Žarko Ćojbašića and Dejan Brkić Equation
Colebrook-White Equation
Future value given Annual value (Engineering Economics)
Future value given Annual value [continuous] (Engineering Economics)
Future value given Present value (Engineering Economics)
Future value given Present value [continuous] (Engineering Economics)
Floor Division (Python compatible)
Quick Search
Fraction (or Mixed number) to a Decimal (Numeric Vector)
Fractional Differences (GNU Octave/MATLAB compatible)
IN ORDER for Character and Numeric Vectors
Not CHIN or IN for Character and Numeric Vectors
iemisc: Irucka Embry's miscellaneous functions
Simple Interest rate given Interest Charged, Number of years, and Prin...
Interest rate given Future value, Number of periods, and Present value...
Column Vector (GNU Octave/MATLAB compatible)
Row Vector (GNU Octave/MATLAB compatible)
Kinematic Viscosity for liquid Water
United States of America (USA) State Identification Using Latitude/Lon...
Conversion of Latitude/Longitude to UTM Coordinates
Length of R objects (GNU Octave/MATLAB compatible)
Hash Table/Dictionary LookupThese functions were originally contained ...
Circular Cross-section Using the Gauckler-Manning-Strickler Equation 1
Circular Cross-section Using the Gauckler-Manning-Strickler Equation 2
Parabolic cross-section for the Gauckler-Manning-Strickler equation
Rectangular cross-section for the Gauckler-Manning-Strickler equation
Trapezoidal cross-section for the Gauckler-Manning-Strickler equation
Trapezoidal cross-section for the Gauckler-Manning-Strickler equation ...
Triangular cross-section for the Gauckler-Manning-Strickler equation
Maximum Mean relative error (MAXRE)
Modulus Operation (GNU Octave/MATLAB compatible)
Mortality Rate
Mortality Rate Percent
Present value given Annual value (Engineering Economics)
Mean relative error (MRE)
Manning's n for natural channels
na.interp1
Horton method for composite Manning's n
Einstein and Banks method for composite Manning's n
Lotter method for composite Manning's n
Krishnamurthy and Christensen method for composite Manning's n
Number of dimensions in an Array (GNU Octave/MATLAB compatible)
To Find i Given F, n, and P (Engineering Economics)
Number of elements (GNU Octave/MATLAB compatible)
Present value for geometric gradient series (Engineering Economics)
Present value given Annual value [continuous] (Engineering Economics)
Present value given Future value (Engineering Economics)
Present value given Future value [continuous] (Engineering Economics)
"Present equivalent of a series of future cash flows subject to varyin...
Present value given Gradient value (Engineering Economics)
Polygon Area (using the Shoelace Formula)
Calculate the midpoint between two coordinates (KY and TN)
Proportional Mortality Ratio
Proportion Solver
Rain Garden Sizing for Driveways
Sample range
Modified Rational Method Equation
Calculating the Reynolds Number 1
Calculating the Reynolds Number 2
Calculating the Reynolds Number 3
Calculating the Reynolds Number 4
Reduce an Integer, a Date (Time), or a Number (with or without Decimal...
Right triangle calculations
Root-mean-square
Saturation Vapor Pressure for Water
Saturation Vapor Pressure for Ice
Secant (in radians)
Secant (in degrees) [GNU Octave/MATLAB compatible]
Section Properties Calculator [GNU Octave/MATLAB]
Geometric mean
Harmonic mean
Simple Interest Charged (Engineering Economics)
Simple Interest Paid (Engineering Economics)
Sine (in degrees) [GNU Octave/MATLAB compatible]
Size of R objects (GNU Octave/MATLAB compatible)
Specific Volume
Specific Volume
Split Comma
Split Remove
Water Surface Tension for Liquid Water
Calculate the Total Surface Area of Linear Surfaces
Tangent (in degrees) [GNU Octave/MATLAB compatible]
Composite CN (Curve Number) with Unconnected Impervious Area
Unit Weight or Specific Weight
Sphere volume
Calculate the Weighted C factor
Calculate the Weighted CN (Curve Number)
A collection of Irucka Embry's miscellaneous functions (Engineering Economics, Civil & Environmental/Water Resources Engineering, Construction Measurements, GNU Octave compatible functions, Python compatible function, Trigonometric functions in degrees and function in radians, Geometry, Statistics, Mortality Calculators, Quick Search, etc.).