Trigonometric Functions

With careful attention to branch cuts, Mathematica supports trigonometric functions everywhere in the complex plane, with extensive exact and algebraic transformations, together with efficient arbitrary-precision numerical evaluation. Mathematica follows the standard mathematical convention of using radians for trigonometric function arguments.

ReferenceReference

Sin ▪ Cos ▪ Tan ▪ Csc ▪ Sec ▪ Cot

ArcSin ▪ ArcCos ▪ ArcTan ▪ ArcCsc ▪ ArcSec ▪ ArcCot

Haversine ▪ InverseHaversine

Degree (°) — constant to convert from radians to degrees

I () — , entered as EsciiEsc ("imaginary i")

FromDMS, DMSList convert between radians and degrees, minutes, seconds

FullSimplify simplify trigonometric expressions

FunctionExpand reduce to algebraic forms or simpler arguments

TrigExpand etc.

TrigFactor Sin[..]+Sin[..]product of terms, etc.

TrigReduce etc.

TrigToExp, ExpToTrig convert between trigonometric functions and exponentials

ComplexExpand expand into real and imaginary parts

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