NResidue[expr, {z, z_0}] numerically finds the residue of expr near the point z = z_0.

LongestCommonSubsequence[s_1, s_2] finds the longest contiguous subsequence of elements common to the strings or lists s_1 and s_2.

NumberPoint is an option for NumberForm and related functions which gives the string to use as a decimal point.

VertexComponent[g, {v_1, v_2, ...}] gives the vertices in the graph g that have a path to at least one of v_1, v_2, ....VertexComponent[g, {v_1, v_2, ...}, k] gives the ...

This tutorial introduces some basic algorithms for computing with finite permutation groups, other than those introduced in "Permutation Groups". A subgroup H of a group G ...

Numerical integration functions. This finds a numerical approximation to the integral ∫_(0)^∞ e^-x^3 x. Here is the numerical value of the double integral ∫_(-1)^1 dx ...

x - y is equivalent to x + (-1*y).

CoprimeQ[n_1, n_2] yields True if n_1 and n_2 are relatively prime, and yields False otherwise. CoprimeQ[n_1, n_2, ...] yields True if all pairs of the n_i are relatively ...

FindRoot[f, {x, x_0}] searches for a numerical root of f, starting from the point x = x_0.FindRoot[lhs == rhs, {x, x_0}] searches for a numerical solution to the equation lhs ...

$KernelCount gives the number of subkernels available for parallel computations.