gsl_spline *spline= gsl_spline_alloc (gsl_interp_cspline, 10); gsl_spline_init (spline, x, y, 10); for (xi = x[0]; xi < x[9]; xi += 0.01) { yi = gsl_spline_eval_r(spline, xi, acc);//求x=xi时对应的插值yi。 printf ("%g %g\n", xi, yi); } gsl_spline_free (s...
在使用GSL进行三次样条插值时,按照reference的示例,可以用如下代码段完成这个功能: gsl_interp_accel *acc = gsl_interp_accel_alloc(); gsl_spline *spline = gsl_spline_alloc(gsl_interp_cspline, x.size()); gsl_spline_init(spline, x.data(), y.data(), x.size()); double yi=gsl_spline_eval...
gsl_interp* interps[3] = {NULL,NULL,NULL}; interps[0] = gsl_interp_alloc(gsl_interp_linear,n); interps[1] = gsl_interp_alloc(gsl_interp_polynomial,n); interps[2] = gsl_interp_alloc(gsl_interp_cspline,n); gsl_interp_init(interps[0],x,y,n); gsl_interp_init(interps[1],x...
gsl_interp_accel *acc = gsl_interp_accel_alloc(); gsl_spline *spline = gsl_spline_alloc(gsl_interp_cspline, 10); gsl_spline_init(spline, x, y, 10); for (xi = x[0]; xi < x[9]; xi += 0.01) { yi = gsl_spline_eval(spline, xi, acc);//求x=xi时对应的插值yi。 printf("...
gsl_wavelet *gsl_wavelet_alloc(const gsl_wavelet_type *T, size_t k) 此函数用于分配和初始化T类型的小波对象。参数k选择小波族的特定成员。如果可用内存不足或选择了不受支持的成员,则返回空指针。 实现的小波类型 gsl_wavelet_type *gsl_wavelet_daubechies gsl_wavelet_type *gsl_wavelet_daubechies_cente...
1#include <gsl/gsl_spline.h>2#include <cstdio>3#include <cstdlib>4#include <cmath>56voidDisplay()7{8constsize_t n =4;9doublex[] = {0,0.333336,0.666666,1};10doubley[] = {0,0.5,0.9,0};11gsl_interp* interps[3] ={NULL,NULL,NULL};12interps[0] =gsl_interp_alloc(gsl_interp...
create an interpolation object usinginterp2d_alloc()(low-level) orinterp2d_spline_alloc()(high-level) initialize it usinginterp2d_init()orinterp2d_spline_alloc() evaluate the interpolating function or its derivatives usinginterp2d_eval()/interp2d_spline_eval()or its counterparts, possibly man...
问用GNU科学图书馆(GSL)拟合多项式曲线ENimport numpy as np #主要用于处理矩阵相关运算 import random #主要用于随机数处理 import matplotlib.pyplot as plt #数据可视化模块 #多项式的次数 m=10#生成样本数据点 x=np.arange(-1,1,0.02) y=[((a*a-1.55)**3+(a-0.3)**7+4*np.sin(5*a)...
简单介绍了贝塞尔Bezier曲线曲面和B样条B-Spline曲线曲面, 希望能够带来一个大概视角和总览. 本文同步存于...
[0] = gsl_interp_alloc(gsl_interp_linear,n); interps[1] = gsl_interp_alloc(gsl_interp_polynomial,n); interps[2] = gsl_interp_alloc(gsl_interp_cspline,n); gsl_interp_init(interps[0],x,y,n); gsl_interp_init(interps[1],x,y,n); gsl_interp_init(interps[2],x,y,n); gsl...