10.6. Trigonometry

acos
acos (x)

Aliases: arccos

The arccos (inverse cos) function

acosh
acosh (x)

Aliases: arccosh

The arccosh (inverse cosh) function

acot
acot (x)

Aliases: arccot

The arccot (inverse cot) function

acoth
acoth (x)

Aliases: arccoth

The arccoth (inverse coth) function

acsc
acsc (x)

Aliases: arccsc

The inverse cosecant function

acsch
acsch (x)

Aliases: arccsch

The inverse hyperbolic cosecant function

asec
asec (x)

Aliases: arcsec

The inverse secant function

asech
asech (x)

Aliases: arcsech

The inverse hyperbolic secant function

asin
asin (x)

Aliases: arcsin

The arcsin (inverse sin) function

asinh
asinh (x)

Aliases: arcsinh

The arcsinh (inverse sinh) function

atan
atan (x)

Aliases: arctan

Calculates the arctan (inverse tan) function.

See Mathworld for more information.

atanh
atanh (x)

Aliases: arctanh

The arctanh (inverse tanh) function

atan2
atan2 (y, x)

Aliases: arctan2

Calculates the arctan2 function. If x>0 then it returns atan(y/x). If x<0 then it returns sign(y) * (pi - atan(|y/x|). When x=0 it returns sign(y) * pi/2. atan2(0,0) returns 0 rather then failing.

See Mathworld for more information.

cos
cos (x)

Calculates the cosine function.

See Planetmath for more information.

cosh
cosh (x)

Calculates the hyperbolic cosine function

See Planetmath for more information.

cot
cot (x)

The cotangent function

See Planetmath for more information.

coth
coth (x)

The hyperbolic cotangent function

See Planetmath for more information.

csc
csc (x)

The cosecant function

See Planetmath for more information.

csch
csch (x)

The hyperbolic cosecant function

See Planetmath for more information.

sec
sec (x)

The secant function

See Planetmath for more information.

sech
sech (x)

The hyperbolic secant function

See Planetmath for more information.

sin
sin (x)

Calculates the sine function.

See Planetmath for more information.

sinh
sinh (x)

Calculates the hyperbolic sine function

See Planetmath for more information.

tan
tan (x)

Calculates the tan function

See Planetmath for more information.

tanh
tanh (x)

The hyperbolic tangent function

See Planetmath for more information.