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(guile.info)Scientific

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Scientific Functions
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The following procedures accept any kind of number as arguments,
including complex numbers.

 - procedure: sqrt z
     Return the square root of Z.

 - procedure: expt z1 z2
     Return Z1 raised to the power of Z2.

 - procedure: sin z
     Return the sine of Z.

 - procedure: cos z
     Return the cosine of Z.

 - procedure: tan z
     Return the tangent of Z.

 - procedure: asin z
     Return the arcsine of Z.

 - procedure: acos z
     Return the arccosine of Z.

 - procedure: atan z
     Return the arctangent of Z.

 - procedure: exp z
     Return e to the power of Z, where e is the base of natural
     logarithms (2.71828...).

 - procedure: log z
     Return the natural logarithm of Z.

 - procedure: log10 z
     Return the base 10 logarithm of Z.

 - procedure: sinh z
     Return the hyperbolic sine of Z.

 - procedure: cosh z
     Return the hyperbolic cosine of Z.

 - procedure: tanh z
     Return the hyperbolic tangent of Z.

 - procedure: asinh z
     Return the hyperbolic arcsine of Z.

 - procedure: acosh z
     Return the hyperbolic arccosine of Z.

 - procedure: atanh z
     Return the hyperbolic arctangent of Z.