Changeset 242 for trunk/SRC/Interpolation/spl_incr.pro
- Timestamp:
- 04/06/07 10:35:17 (17 years ago)
- File:
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- 1 edited
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trunk/SRC/Interpolation/spl_incr.pro
r238 r242 2 2 ; 3 3 ; @file_comments 4 ;5 4 ; Given the arrays X and Y, which tabulate a function (with the X[i] 6 5 ; AND Y[i] in ascending order), and given an input value X2, the … … 10 9 ; 11 10 ; @param x1 {in}{required} 12 ; An n-element (at least 2) input vector that specifies the tabulate points in11 ; An n-elements (at least 2) input vector that specifies the tabulate points in 13 12 ; a strict ascending order. 14 13 ; 15 14 ; @param y1 {in}{required} 16 ; f(x) = y. An n-element input vector that specifies the values15 ; f(x) = y. An n-elements input vector that specifies the values 17 16 ; of the tabulated function F(Xi) corresponding to Xi. As f is 18 17 ; supposed to be monotonically increasing, y values must be … … 28 27 ; 29 28 ; @returns 30 ; 31 ; y2: f(x2) = y2. Double precision array 29 ; y2: f(x2) = y2. Double precision array 32 30 ; 33 31 ; @restrictions … … 36 34 ; 37 35 ; @examples 38 ;39 36 ; IDL> n = 100L 40 37 ; IDL> x = (dindgen(n))^2 … … 87 84 ; 88 85 ; @param x1 {in}{required} 89 ; An n-element (at least 2) input vector that specifies the tabulate points in86 ; An n-elements (at least 2) input vector that specifies the tabulate points in 90 87 ; a strict ascending order. 91 88 ; 92 89 ; @param y1 {in}{required} 93 ; f(x) = y. An n-element input vector that specifies the values90 ; f(x) = y. An n-elements input vector that specifies the values 94 91 ; of the tabulated function F(Xi) corresponding to Xi. As f is 95 92 ; supposed to be monotonically increasing, y values must be … … 101 98 ; 102 99 ; @param der2 100 ; 103 101 ; @param x 104 102 ; … … 135 133 ; point X0. If YP0 is omitted, the second derivative at the 136 134 ; boundary is set to zero, resulting in a "natural spline." 135 ; 137 136 ; @keyword YPN_1 138 137 ; The first derivative of the interpolating function at the
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