Julian and Gregorian calendars date conversion
Calculation of Julian day for given date plus some information about it
This calculator will help you to solve uniform acceleration problems
The calculation of the number of planks requiered
Involute of an angle calculator and finding an angle by the given involute.
Least Common Denominator for several fractions
This online calculator determines lengths of triangle sides given one side and two angles
This online calculator finds the height above the bottom of a horizontal cylinder (such as a cylindrical gas tank) to which the it must be filled for it to be full at specified percentage (for example, one quarter full amounts)
Online calculator for measuring Levenshtein distance between two words
This calculator solves linear diophantine equations.
Сalculates the level of the liquid in a tilted cylindrical tank with the tank parameters and the liquid volume.
Kinematics problem from the Svetozarov's book for MEPI matriculates
The calculator checks LL1 grammar correctness, parses a text using the grammar, shows FIRST, FOLLOW and FIRST PLUS sets, parsing tree and gives PLANETCALC parsing code.
This online calculator outputs logarithm of a number to a given base, as well as natural logarithm and common (decadic) logarithm
Calculates digit sequence checksum using Luhn algorithm (mod 10), calculates validation digit (the digit to be appended to the digit sequence to make whole sequence ckecksum equal to zero).
Simplifies math equation with single variable (x). In eqation you may also use integer and fractional numerical constants arithmetic operations, trigonometric and hyperbolic functions.
Math equation samples.
This online calculator supports simple mathematical operations, addition/subtraction/multiplication/division, on degrees
Random worksheets, which are generated automatically from user parameters.