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• Standard Functions
• Trigonometry
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Function overview:

• abs
• acos
• acosh
• asin
• asinh
• atan
• atanh
• binomial
• ceil
• cos
• cosh
• cross
• deg
• det
• diff
• e
• exp
• factorize
• floor
• for
• gcd
• i
• in
• j
• lcm
• len
• length
• ln
• log
• magic
• max
• min
• mod
• nCr
• normalize
• pi
• plot
• rad
• rand
• round
• sin
• sinh
• size
• solve
• sqr
• sum
• tan
• tanh

Help / Trigonometry / Inverse Cosine

Notation:

• acos(a)
• arccos(a)

Parameter(s):

• aNumber

Usage examples:

:deg

plot(acos(x),x=-1..1)

:rad

plot(acos(x),x=-1..1)

plot(re(acos(x)),im(acos(x)),x=-2..2)

See also:

acos acosh asin asinh atan atan2 cos cosh deg pi rad sin sinh tan tanh