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math::complexnumbers(n) 1.0 "complexnumbers"
math::complexnumbers - Straightforward complex number
package
TABLE OF
CONTENTS
SYNOPSIS
DESCRIPTION
AVAILABLE
PROCEDURES
KEYWORDS
COPYRIGHT
package require Tcl 8.3
package require math::complexnumbers ?1.0?
The mathematical module complexnumbers provides a
straightforward implementation of complex numbers in pure Tcl. The
philosophy is that the user knows he or she is dealing with complex
numbers in an abstract way and wants as high a performance as can
be had within the limitations of an interpreted language.
Therefore the procedures defined in this package assume that the
arguments are valid (representations of) "complex numbers", that
is, lists of two numbers defining the real and imaginary part of a
complex number (though this is a mere detail: rely on the
complex command to construct a valid number.)
Most procedures implement the basic arithmetic operations or
elementary functions whereas several others convert to and from
different representations:
|
set z [complex 0 1]
puts "z = [tostring $z]"
puts "z**2 = [* $z $z]
|
would result in:
The package implements all or most basic operations and
elementary functions.
The arithmetic operations are:
- ::math::complexnumbers::+ z1 z2
- Add the two arguments and return the resulting complex
number
- complex z1 (in)
- First argument in the summation
- complex z2 (in)
- Second argument in the summation
- ::math::complexnumbers::- z1 z2
- Subtract the second argument from the first and return the
resulting complex number. If there is only one argument, the
opposite of z1 is returned (i.e. -z1)
- complex z1 (in)
- First argument in the subtraction
- complex z2 (in)
- Second argument in the subtraction (optional)
- ::math::complexnumbers::* z1 z2
- Multiply the two arguments and return the resulting complex
number
- complex z1 (in)
- First argument in the multiplication
- complex z2 (in)
- Second argument in the multiplication
- ::math::complexnumbers::/ z1 z2
- Divide the first argument by the second and return the
resulting complex number
- complex z1 (in)
- First argument (numerator) in the division
- complex z2 (in)
- Second argument (denominator) in the division
- ::math::complexnumbers::conj z1
- Return the conjugate of the given complex number
- complex z1 (in)
- Complex number in question
Conversion/inquiry procedures:
- ::math::complexnumbers::real z1
- Return the real part of the given complex number
- complex z1 (in)
- Complex number in question
- ::math::complexnumbers::imag z1
- Return the imaginary part of the given complex number
- complex z1 (in)
- Complex number in question
- ::math::complexnumbers::mod z1
- Return the modulus of the given complex number
- complex z1 (in)
- Complex number in question
- ::math::complexnumbers::arg z1
- Return the argument ("angle" in radians) of the given complex
number
- complex z1 (in)
- Complex number in question
- ::math::complexnumbers::complex
real imag
- Construct the complex number "real + imag*i" and return it
- float real (in)
- The real part of the new complex number
- float imag (in)
- The imaginary part of the new complex number
- ::math::complexnumbers::tostring z1
- Convert the complex number to the form "real + imag*i" and
return the string
- float complex (in)
- The complex number to be converted
Elementary functions:
- ::math::complexnumbers::exp z1
- Calculate the exponential for the given complex argument and
return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::sin z1
- Calculate the sine function for the given complex argument and
return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::cos z1
- Calculate the cosine function for the given complex argument
and return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::tan z1
- Calculate the tangent function for the given complex argument
and return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::log z1
- Calculate the (principle value of the) logarithm for the given
complex argument and return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::sqrt z1
- Calculate the (principle value of the) square root for the
given complex argument and return the result
- complex z1 (in)
- The complex argument for the function
- ::math::complexnumbers::pow z1 z2
- Calculate "z1 to the power of z2" and return the result
- complex z1 (in)
- The complex number to be raised to a power
- complex z2 (in)
- The complex power to be used
complex numbers , math
Copyright © 2004 Arjen Markus
<arjenmarkus@users.sourceforge.net>