Numerical root finding. NSolve gives you numerical approximations to all the roots of a polynomial equation. You can also use NSolve to solve sets of simultaneous equations ...

If you use your computer via a purely graphical interface, you will typically double-click the Mathematica icon to start Mathematica. If you use your computer via a textually ...

TimeZone is an option for DateString, AbsoluteTime, and related functions that specifies the time zone to use for dates and times.

ExtendedGCD[n_1, n_2, ...] gives the extended greatest common divisor of the integers n_i.

FactorInteger[n] gives a list of the prime factors of the integer n, together with their exponents. FactorInteger[n, k] does partial factorization, pulling out at most k ...

A full Mathematica installation consists of thousands of separate files, arranged in several hundred directories under the main installation directory. The location of the ...

Prime[n] gives the n\[Null]^th prime number.

MorphologicalBinarize[image, {t_1, t_2}] creates a binary image from image by replacing all values above the upper threshold t_2 with 1, also including pixels with ...

ButtonBox[boxes] is a low-level box construct that represents a button in a notebook expression.

lhs =. removes any rules defined for lhs.