(octave.info)Arithmetic

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17 Arithmetic
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Unless otherwise noted, all of the functions described in this chapter
will work for real and complex scalar, vector, or matrix arguments.
Functions described as “mapping functions” apply the given operation
individually to each element when given a matrix argument.  For example:

     sin ([1, 2; 3, 4])
          ⇒  0.84147   0.90930
              0.14112  -0.75680

Exponents and Logarithms

Complex Arithmetic

Trigonometry

Sums and Products

Utility Functions

Special Functions

Rational Approximations

Coordinate Transformations

Mathematical Constants