Date Calculator
Tells the number of days between two dates, or defines a date based on the number of days from a specified day.| http://cgi.cs.duke.edu/~des/datecalc/datecalc.cgi | site info |
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AKiTi
Math solving resources for quadratic, cubic and quartic equations, along with utilities for root-finding, maxima/minima of functions, N equations in N unknowns, numerical integration, data fitting and eigenvalues and eigenvectors. |
Calculator Tab
Scientific calculator with features including long term memory storage, ambiguous input filter, possibility of switching between comma and point as decimal separators, and saving of settings between sessions. |
PHPSimplex
A free tool which enables users to solve linear programming problems. The tool has no limits on the number of decision variables and no restrictions on the amount of problems. |
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