E is the exponential constant E (base of natural logarithms), with numerical value \[TildeEqual] 2.71828.

Pi is \[Pi], with numerical value \[TildeEqual] 3.14159.

PrimeQ[expr] yields True if expr is a prime number, and yields False otherwise.

OddQ[expr] gives True if expr is an odd integer, and False otherwise.

Exact symbolic results are usually very desirable when they can be found. In many calculations, however, it is not possible to get symbolic results. In such cases, you must ...

PowersRepresentations[n, k, p] gives the distinct representations of the integer n as a sum of k non-negative p\[Null]^th integer powers.

Mathematica provides powerful functions to compute state-feedback and estimator gains using pole-placement or optimal techniques. In addition, it has functions that directly ...

Mathematica provides state-of-the-art fully automated visualization of vector functions and data—suitable for representing flows, field lines and other vector fields of any ...

Mathematica makes it easy to take even the most complicated derivatives involving any of its huge range of differentiable special functions.

TrigReduce[expr] rewrites products and powers of trigonometric functions in expr in terms of trigonometric functions with combined arguments.