用C语言写了一个三次样条插值(自然边界)的S-Function,代码如下: View Code 3. 例子 以y=sin(x)为例, x步长为1,x取值范围是[0,10]。对它使用三次样条插值,插值前后对比如下:
用C语言写了一个三次样条插值(自然边界)的S-Function,代码如下: View Code 3. 例子 以y=sin(x)为例, x步长为1,x取值范围是[0,10]。对它使用三次样条插值,插值前后对比如下:
UNI is an experimental program, not a highly polished package; nevertheless, even in its present form, UNI can be quite useful for one-dimensional interpolation problems. 4 figures, 1 table.Dickinson, R. PCalifornia Univ.Carlson, R. E
用C语言写了一个三次样条插值(自然边界)的S-Function,代码如下: View Code #defineS_FUNCTION_NAME cubic#defineS_FUNCTION_LEVEL 2#include"simstruc.h"#include"malloc.h"//方便使用变量定义数组大小staticvoidmdlInitializeSizes(SimStruct *S) {/*参数只有一个,是n乘2的定点数组[xi, yi]: * [ x1,y1; ...
A cookbook recipe for segmented y=f(x) 3rd-order polynomial interpolation based on arbitrary input data. Includes Octave/Matlab design script and Verilog implementation example. Keywords: Spline, interpolation, function modeling, fixed point...
Spline Interpolation of Sine Data Usesplineto interpolate a sine curve over unevenly-spaced sample points. x = [0 1 2.5 3.6 5 7 8.1 10]; y = sin(x); xx = 0:.25:10; yy = spline(x,y,xx); plot(x,y,'o',xx,yy) Spline Interpolation with Specified Endpoint Slopes ...
This step shows how to apply 'natural' cubic spline interpolation to the function f2(x)=((x−2)+)3, and plot the error. The code below computes the 'natural' spline interpolant with an alternative argument syntax that is equivalent to the'variational'argument: using'second'specifies thatcs...
interpft %使用fft算法插值%将原数据x转换到频率域,再逆转换回来更密集的数据采样点spline%一维Cubicspline(三次样条) data interpolation interp2...(-3:.33:3,-3:0.05:3); %XI间隔为0.33,YI间隔为0.05 ZI=interp2(X,Y,Z,XI,YI,'cubic'); %设定插值使用的算法。其他选项还有 ...
interpft %使用fft算法插值%将原数据x转换到频率域,再逆转换回来更密集的数据采样点spline%一维Cubicspline(三次样条)datainterpolationinterp2... interpolates betweendatapoints. It findsvaluesofatwo-dimensional function f(x,y) underlyingthedata matlab多项式插值interp1深入研究(1) ...
public float GetCurveInterpolation(int curveIndex, float curveDistance)ParametersTypeNameDescription int curveIndex The zero-based index of the curve. float curveDistance The curve-relative distance to convert to an interpolation ratio (also referred to as 't')....