Table of Contents Preface Coordinate transformation causes normal vector to change Change pattern: Magic Matrix: Inverse Transposed Matrix Summary of usage of inverse transposed matrix Specifications of setInverseOf and transpose methods of Matrix4 objects (to complete the inversion of the matrix) Sample code (LightedTranslatedRotatedCube.js) Detailed code explanation Example effect Foreword As objects in the scene […]
Tag: inverse
Matrix inversion – Java implementation of finding the inverse of any order matrix
My recent study involves matrices, and finding the inverse, adjoint, and determinant of an n-order matrix is a headache. So I thought about finding a code online to find the inverse correlation of a matrix. After searching for a long time, all I found were calculations designed for float and double… em, this is not […]
C language_storage of data in memory – original code, inverse code, complement code, big-endian and little-endian storage
Table of Contents 1. Summary of type classification and memory size 2. Original code, inverse code, complement code 1) Storage of integers in memory 2) Storage of floating point numbers in memory 3. Big endian storage and little endian storage 1. Summary of type classification and memory size Type Memory usage (unit bytes) Integer family […]
Inverse synthetic aperture radar ISAR imaging & compressed sensing ISAR imaging
This content uses the classic OMP algorithm, combined with the ISAR imaging algorithm, to implement ISAR compressed sensing imaging using Fourier transform base or discrete cosine transform base for a typical space target scattering point model, and compares the situations with different echo sparsity. Image entropy of the ISAR image. 1. Compressed sensing theory Compressed […]
“Robotics (1)”_National Taiwan University Lin Peiqun Week 4 [Robotic Arm Inverse Kinematics] Quiz 4
To be improved: Chapter 5- 7 [Not sure how to determine it yet] Whoever made it, please give me a clue, thank you! No. 6-7: Guessing and being confused ################################################ ## After the whole process is completed, there is only one solution left. I don’t understand why there are two solutions to questions 5-7. ################################################ […]
el-tree realizes one-click selection and inverse selection functions
This article will explain in detail how to implement the one-click all-select and inverse-select function of the el-tree component in the vue3 + Element Plus project: when you click one-click select all, all nodes will be selected. When the nodes are not all selected, the all-select box It is half-selected. (Finally, vue2 + element ui […]
Tongsuo SM2 algorithm performance optimization practice (3) | Implementation of fast modular inverse element algorithm
The concept of modular inverse elements In mathematics, the multiplicative inverse is better known as the “reciprocal”. That is, for a real number a, its reciprocal a-1 satisfies a*a-1=1. Since 1 is the multiplicative identity element of the real number field, the reciprocal a-1 is the multiplicative inverse element of the real number a. In […]
Geocoding and inverse geocoding – Gaode map
A geocode 1.1 Introduction Convert detailed structured addresses to AutoNavi latitude-longitude coordinates. It also supports parsing the names of landmark scenic spots and buildings into the latitude and longitude coordinates of AutoNavi. Example of a structured address: No. 6, Futong East Street, Chaoyang District, Beijing After conversion, latitude and longitude: 116.480881, 39.989410 Example of a […]
Image Processing: Fourier and Inverse Fourier Transform using Numpy and OpenCV
Click “Xiaobai Xuevision” above, and choose to add “Star” or “Stick“ Heavy dry goods, delivered as soon as possible Author丨Topol in the storm @CSDN Edit丨3D vision developer community head Record content 1. What is Fourier transform and its theoretical basis 2. Numpy implements Fourier and inverse Fourier transform and high-pass filtering example 3. OpenCV implements […]
Inverse element (Fermat’s little theorem, extended Euclidean, inverse element linear table)
Inverse element Application and Proof of Inverse Element Fermat’s little theorem method Extended Euclidean Inverse Here is the template code for the extended Euclidean algorithm: Find the inverse element by typing the table Find 1 by dialing the inverse element! ~n! Application and Proof of Inverse Element Before learning inverse elements, let’s first understand the […]