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comparison scripts/plot/draw/peaks.m @ 19596:0e1f5a750d00

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maint: Periodic merge of gui-release to default.
author John W. Eaton <jwe@octave.org>
date Tue, 20 Jan 2015 10:24:46 -0500
parents d59d052c9858 446c46af4b42
children 4197fc428c7d
comparison
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19592:37d37297acf8 19596:0e1f5a750d00
37 ## @end verbatim 37 ## @end verbatim
38 ## @end ifnottex 38 ## @end ifnottex
39 ## 39 ##
40 ## Called without a return argument, @code{peaks} plots the surface of the 40 ## Called without a return argument, @code{peaks} plots the surface of the
41 ## above function using @code{surf}. 41 ## above function using @code{surf}.
42 ## 42 ##
43 ## If @var{n} is a scalar, @code{peaks} plots the value of the above 43 ## If @var{n} is a scalar, @code{peaks} plots the value of the above
44 ## function on an @var{n}-by-@var{n} mesh over the range [-3,3]. The 44 ## function on an @var{n}-by-@var{n} mesh over the range [-3,3]. The
45 ## default value for @var{n} is 49. 45 ## default value for @var{n} is 49.
46 ## 46 ##
47 ## If @var{n} is a vector, then it represents the grid values over which 47 ## If @var{n} is a vector, then it represents the grid values over which
49 ## the function value is calculated over the specified grid of vertices. 49 ## the function value is calculated over the specified grid of vertices.
50 ## 50 ##
51 ## When called with output arguments, return the data for the function 51 ## When called with output arguments, return the data for the function
52 ## evaluated over the meshgrid. This can subsequently be plotted with 52 ## evaluated over the meshgrid. This can subsequently be plotted with
53 ## @code{surf (@var{x}, @var{y}, @var{z})}. 53 ## @code{surf (@var{x}, @var{y}, @var{z})}.
54 ## 54 ##
55 ## @seealso{sombrero, meshgrid, mesh, surf} 55 ## @seealso{sombrero, meshgrid, mesh, surf}
56 ## @end deftypefn 56 ## @end deftypefn
57 57
58 ## Expression for the peaks function was taken from the following paper: 58 ## Expression for the peaks function was taken from the following paper:
59 ## http://www.control.hut.fi/Kurssit/AS-74.115/Material/GENALGgoga.pdf 59 ## http://www.control.hut.fi/Kurssit/AS-74.115/Material/GENALGgoga.pdf