19 lines
571 B
Text
19 lines
571 B
Text
import Real.
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variable exp : Real → Real.
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variable log : Real → Real.
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variable pi : Real.
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alias π : pi.
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variable sin : Real → Real.
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definition cos x := sin (x - π / 2).
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definition tan x := sin x / cos x.
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definition cot x := cos x / sin x.
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definition sec x := 1 / cos x.
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definition csc x := 1 / sin x.
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definition sinh x := (1 - exp (-2 * x)) / (2 * exp (- x)).
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definition cosh x := (1 + exp (-2 * x)) / (2 * exp (- x)).
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definition tanh x := sinh x / cosh x.
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definition coth x := cosh x / sinh x.
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definition sech x := 1 / cosh x.
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definition csch x := 1 / sinh x.
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