# Mathematical References

Throughout the years as an engineer, I have needed to research topics on engineering, physics, chemistry, mechanics, mathematics, etc. The Internet has made the job infinitely simpler, with the caveat that you have to be careful of your sources. Anyone can post anything on the Internet without peer review, and errors are rampant. The topics listed below are primarily ones that I have researched and generated custom pages for the content. I welcome visitor review and comments on my material to help ensure accuracy.

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 A Arcs Averages B Bessel Functions Box & Whisker Chart C Circles Complimentary Error Function Erfc(x) Complex Numbers Cones Constants (all values) Coordinate Systems Cylinders D Derivatives, Basic Deviations Differentiation Rules E Error Function Erf(x) Exponents F Fourier Series Fourier Transform Pairs Fourier Series Properties G Geometry - Arcs & Circles Geometry - Cylinders, Cones, Spheres Geometry - Polygons
 I Imaginary Numbers Integrals, Basic Integrals, a+bx Form Integrals, Exponential Integrals, Sqrt(a2+x2) Form Integrals, Sqrt(a2-x2) Form Integrals, Sqrt(x2-a2) Form Integrals, Inverse Trig Integrals, Natural Log Integrals, Square Root Integrals, Trigonometric L LaPlace Transform Pairs LaPlace Transform Properties Logarithms M Matrix Algebra Matrix Definitions N Numerical Prefixes P Partial Fractions Permutations & Combinations Phi (Φ) - the Golden Number Pi (π) Plane Angle Polygons Prime Numbers
 S Series Expansions Slide Rules Spheres Statistics, Engineering Summations T Trig Identities Trig Identities, Inverse Trig Identities, Hyperbolic Trig Identities, Inv Hyperbolic Trigonometry Laws U Uncertainties,  NIST version V Vector, Curl Vector, Divergence Vector, Gradient Z z-Transform Properties

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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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