Trigonometry

Sine, cosine, and related functions, with results in radians or degrees

The trigonometric functions in MATLAB^® calculate standard trigonometric values in radians or degrees, hyperbolic trigonometric values in radians, and inverse variants of each function. You can use the rad2deg and deg2rad functions to convert between radians and degrees, or functions like cart2pol to convert between coordinate systems.

Functions

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Sine

`sin`	Sine of argument in radians
`sind`	Sine of argument in degrees
`sinpi`	Compute sin(X*pi) accurately
`asin`	Inverse sine in radians
`asind`	Inverse sine in degrees
`sinh`	Hyperbolic sine
`asinh`	Inverse hyperbolic sine

Cosine

`cos`	Cosine of argument in radians
`cosd`	Cosine of argument in degrees
`cospi`	Compute cos(X*pi) accurately
`acos`	Inverse cosine in radians
`acosd`	Inverse cosine in degrees
`cosh`	Hyperbolic cosine
`acosh`	Inverse hyperbolic cosine

Tangent

`tan`	Tangent of argument in radians
`tand`	Tangent of argument in degrees
`atan`	Inverse tangent in radians
`atand`	Inverse tangent in degrees
`atan2`	Four-quadrant inverse tangent
`atan2d`	Four-quadrant inverse tangent in degrees
`tanh`	Hyperbolic tangent
`atanh`	Inverse hyperbolic tangent

Cosecant

`csc`	Cosecant of input angle in radians
`cscd`	Cosecant of argument in degrees
`acsc`	Inverse cosecant in radians
`acscd`	Inverse cosecant in degrees
`csch`	Hyperbolic cosecant
`acsch`	Inverse hyperbolic cosecant

Secant

`sec`	Secant of angle in radians
`secd`	Secant of argument in degrees
`asec`	Inverse secant in radians
`asecd`	Inverse secant in degrees
`sech`	Hyperbolic secant
`asech`	Inverse hyperbolic secant

Cotangent

`cot`	Cotangent of angle in radians
`cotd`	Cotangent of argument in degrees
`acot`	Inverse cotangent in radians
`acotd`	Inverse cotangent in degrees
`coth`	Hyperbolic cotangent
`acoth`	Inverse hyperbolic cotangent

Hypotenuse

hypot Square root of sum of squares (hypotenuse)

Conversions

Degrees/Radians Conversion

`deg2rad`	Convert angle from degrees to radians
`rad2deg`	Convert angle from radians to degrees

Coordinate Conversion

`cart2pol`	Transform Cartesian coordinates to polar or cylindrical
`cart2sph`	Transform Cartesian coordinates to spherical
`pol2cart`	Transform polar or cylindrical coordinates to Cartesian
`sph2cart`	Transform spherical coordinates to Cartesian

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