13 lines
288 B
C++
13 lines
288 B
C++
#include <iostream>
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void mat_identity(double m[9]) {
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for (int i = 0; i < 9; i++) m[i] = 0.0;
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m[0] = m[4] = m[8] = 1.0;
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}
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void mat_print(double m[9]) {
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for (int r = 0; r < 3; r++) {
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std::cout << "| " << m[r*3] << " " << m[r*3+1] << " " << m[r*3+2] << " |\n";
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}
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}
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