WPF项目 关于Chart控件的应用。

B样条曲线曲面拟合精选代码汇总

曲线拟合-最小二乘法 论文介绍

波形显示控件，实现了同时显示多条数据曲线、局部放大查看、波形显示自动调整最佳坐标范围、动态显示波形等功能

根据叶轮初步设计公式，结合Bezier曲线构造方法依靠NUMECA软件Design3D模块以径流向心式涡轮机效率0．5为目标值，对叶轮子午面型线以及动叶型线进行设计。并通过NUMECA软件对所设计的叶片以及子午流面进行流体计算，得出了符合效率目标值的叶型和子午流面参数，以及子午流面的绝对温度和绝对压力的分布，提出了以径流向心式涡轮机效率为目标值，结合Bezier曲线构造法的叶片型线和子午流面型线的设计方法。

Qt编写的串口收数据并显示数据曲线，收到的数据自动存盘，以时间命名。可以选择曲线显示的更新点数，数据格式，和自动存盘数据长度。

最小二乘法 python代码 附带理论分析在blog中也有。

[ur,vr] = uvcurv2orth(x,y, u,v) 将曲线矢量场旋转到正交矢量场，输出是针对原始曲线位置计算的。 输入： x - 具有 x 个位置的二维数组（长） y - 具有 y 个位置的二维数组（纬度） u - 曲线方向 u 向量场v - 曲线方向 v 矢量场（1,1 是所有阵列的西南角） 输出： 输入数组大小的 u 和 v 数组以及正交网格上的向量分量（long 和 lat）

qt绘制动态曲线-完整示例工程.rar

The Bell Curve by Richard J. Herrnstein and Charles Murray Pirated Edition PART 1. THE EMERGENCE OF A COGNITIVE ELITE 1 Cognitive Class and Education, 1900-1990 29 2 Cognitive Partitioning by Occupation 51 3 The Economic Pressure to Partition 63 4 Steeper Ladders, Narrower Gates91 PART 2 COGNITIVE CLASSES AND SOCIAL BEHIOR 5 Poverty 127 6 Schooling 143 7 Unemployment, Idleness, and Injury155 8 Family Matters167 9 Welfare Dependency191 10 Parenting203 11 Crime 235 12 Civility and Citizenship 253 PART 3 THE NATIONAL CONTEXT 13 Ethnic Differences in Cognitive Ability 269 14 Ethnic Inequalities in Relation to IQ317 15 The Demography of Intelligence 341 16 Social Behavior and the Prevalence of Low Cognitive Ability 369 PART 4. LIVING TOGETHER 17 Raising Cognitive Ability389 18 The Leveling of American Education 417 19 Affirmative Action in Higher Education 447 20 Affirmative Action in the Workplace 479 21 The Way We Are Headed509 22 A Place for Everyone 527 APPENDIXES Statistics for People Who Are Sure They Can’t Learn Statistics 553 ù Technical Issues Regarding the National Longitudinal Survey of Youth 569 3Technical Issues Regarding the Armed Forces Qualification Test as a Measure of IQ 579 4 Regression Analyses from Part 2 593 5 Supplemental Material for Chapter 13 625 6 Regression Analyses from Chapter 14 645 7 The Evolution of Affirmative Action in the Workplace655 Notes 665 Bibliography 775 Index 833 some Bigots and Enthusiasts, and through Fear assented to by some wiser and better Men; it is this. They argue against a fair Discussion of popular Prejudices, because, say they, tho’they would be found without any reasonable Support, yet the Discovery might be productive of the most dangerous Consequences. Absurd and blasphemous Notion! As if all Happiness was not connected with the Practice of Virtue, which necessarily depends upon the Knowledge of Truth. EDMUND BURKE A Vindication of Natural Society