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 ```1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 ``` `````` \$LastChangedDate: 11-03-2011 \$ comet 2D comet animated plot. Calling Sequence comet(y) comet(x,y) comet(x,fun) comet(x,y,p) comet(x,fun,p) comet(...,"colors",c) Parameters x a real vector or matrix. If omitted, it is assumed to be the vector 1:ny where ny is the number of curve points (see below). y a real vector or matrix of length. p a real scalar in the interval[0 1[. Default value is 0.1. fun a scilab function with calling sequence y=fun(x). fun can also be a polynomial or a rational fraction. c a vector of ny color index. Description If (x,y) are two vectors with the same number of elements, this function draws a 2D comet animated plot showing the progession of the curve (x(1:k),y(1:k)) for k varying from 1 to size(x,'*'). The plot is made of three parts: a head mark that shows the current (x(i),y(i)) position. a body that shows the trailing curve that follows the head: the (x(i-k:i),y(i-k:i)) part of the curve. a tail that shows the (x(1:i-k),y(1:i-k)) part of the curve. comet(x,fun,...) is equivalent to comet(x,feval(x,fun),...) comet(...,p) can be used to set the relative length of the body. k is defined as k = round(p*ny). if y is a matrix then animated curves are drawn for each pair (x,y(:,l)). in this case ny is the number of rows of y. if x and y are matrices with identical sizes then animated curves are drawn for each pair (x(:,l),y(:,l)). in this case ny is the number of rows of xand y. comet(...,"colors",c) can be used to set the colors of each curves. Examples See Also comet3d paramfplot2d Authors Serge Steer History First version April 2011, for Scilab-5.3.2 ``````