.SS Functions
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.TP
.B sin
Sine function.
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.TP
.B cos
Cosine function.
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.TP
.B tan
Tangent function.
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.TP
.B asin
Inverse sine function.
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.TP
.B acos
Inverse cosine function.
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.TP
.B atan
Inverse tangent function.
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.TP
.B deg
Convert radians to degrees.
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.TP
.B rad
Convert degrees to radians.
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.TP
.B fac
Factorial (!) function.
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.TP
.B ch
Combination function. n choose k with integers n and k such that n >= k >= 0.
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.TP
.B log10
Decimal (base-10) logarithm function.
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.TP
.B log2
Binary (base-2) logarithm function.
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.TP
.B ln
Natural (base-e) logarithm function.