The calculator requires you to input any two of the following three parameters: wave speed, frequency (or wave period) and wavelength. Once you input two parameters, the calculator will calculate the remaining one and display the result.

he Doppler Effect calculator for sound waves calculates the observed frequency and wavelength of a sound wave given the source frequency, speed of source, and speed of sound in the air.

The Symbol Frequency Table Calculator is a tool that takes in a text message and produces a table of the frequencies of each symbol (i.e., character) that appears in the message. The calculator can be customized to ignore spaces and/or case, allowing for a more accurate analysis of the message's symbol frequencies.

With Planetcalc plugin for Wordpress you can easily insert any planetcalc calculator in your wordpress-based site or blog pages.

Calculation of wave characteristics

This online calculator calculates measure known as fitness score, of how given text is similar to a typical English text. It uses logarithms of probabilities with normalization to calculate fitness score. The reference frequencies are calculated from Leipzig Corpora Collection and can be downloaded from http://practicalcryptography.com/cryptanalysis/text-characterisation/quadgrams/. The less value you get, the better.