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53 lines
876 B
53 lines
876 B
#include "GMath.h"
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#include "CArrayBuffer.h"
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#include "CDataView.h"
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#include "CFloat32Array.h"
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int main() {
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/*
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matrix P = （p1, p2, p3, ......, pn）
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matrix A;
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A * P = (A*p1, A*p2, A*p3, ......, A*pn)
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*/
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float a[] = {
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3, -1, 0,
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4, -1, 0,
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-1, 0, 0
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};
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GMatrix A(3, 3, a);
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float p[] = {
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1, 2, 3,
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1, 2, 3,
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1, 2, 3
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};
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GMatrix P(3, 3, p);
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//模拟P矩阵的第二列
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float x[] = {
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2,
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2,
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2
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};
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GMatrix X(3, 1, x);
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cout << A * P << endl;
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cout << A * X << endl;
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/*
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matrix P = （p1, p2, p3, ......, pn）
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vector v = （v1, v2, v3, ......, vn）
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P * V = (p1 * v1) + (p2 * v2) + (p3 * v3) + ...... + (pn * vn)
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*/
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GVector c1 = A.GetColVec(0);
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GVector c2 = A.GetColVec(1);
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GVector c3 = A.GetColVec(2);
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GVector ret = c1 * X[0][0] + c2 * X[1][0] + c3 * X[2][0];
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cout << ret << endl;
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return 0;
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}
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