Oxxxymiron - ГОРГОРОД
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This project is similar to the project on C (link) but with couple differences.
Here we have better user experience because of the Object-Orientation of C++.
git clone https://github.com/georghegel/matrix_cpp.git
cd matrix_cpp
makeFor test:
make testSimilar to macOS:
git clone https://github.com/georghegel/matrix_cpp.git
cd matrix_cpp
makeFor test:
not ready yetS21Matrix m1(3,3);
S21Matrix m2(3,3);
m1(0,0) = 1;
m1(0,1) = 2;
m1(0,2) = 3;
m1(1,0) = 4;
m1(1,1) = 5;
m1(1,2) = 6;
m1(2,0) = 7;
m1(2,1) = 8;
m1(2,2) = 9;
// let's say m2 fills in the same way
m1.SumMatrix(m2);Let's print the result (it's located in m1):
m1.print();
// 2 4 6
// 8 10 12
// 14 16 18Element-wise multiplication by a given number:
S21Matrix m1(3,3); // just take the matrix from the previous example
double number = -3.0;
m1.MulNumber(number);
m1.print();
// -3 -6 -9
// -12 -15 -18
// -21 -24 -27
Here is the link how does it work:
S21Matrix m1(3,3); // as in the previous example
S21Matrix m2(3,3);
m2(0,0) = 0.7;
m2(0,1) = 11;
m2(0,2) = 0.3;
m2(1,0) = 11;
m2(1,1) = 2;
m2(1,2) = 1;
m2(2,0) = 0.5;
m2(2,1) = 3;
m2(2,2) = -1;
m1.MulMatrix(m2);
m1.print();
// 24.2 24 -0.7
// 60.8 72 0.2
// 97.4 120 1.1How to calculate determinant in Wiki:
S21Matrix m1(2,2);
m1(0,0) = 1;
m1(0,1) = 2;
m1(1,0) = 3;
m1(1,1) = 4;
double det = m1.Determinant();
std::cout << "Determinant is equal to " << det << std::endl;
// Determinant is equal to -2About inverse matrix on Wiki:
S21Matrix m1(3,3);
S21Matrix inverse(3,3); // where will live our inverse matrix
m1(0,0) = 1;
m1(0,1) = 2;
m1(0,2) = 13;
m1(1,0) = 4;
m1(1,1) = 51;
m1(1,2) = 6;
m1(2,0) = 17;
m1(2,1) = 8;
m1(2,2) = 2;
inverse = m1.InverseMatrix();
inverse.print();
// -54/10613 -100/10613 651/10613
// -94/10613 219/10613 -46/10613
// 835/10613 -26/10613 -43/10613S21Matrix m1(3,3);
S21Matrix res(3,3);
m1(0,0) = 1;
m1(0,1) = 2;
m1(0,2) = 3;
m1(1,0) = 0;
m1(1,1) = 4;
m1(1,2) = 2;
m1(2,0) = 5;
m1(2,1) = 2;
m1(2,2) = 1;
res = m1.CalcComplements();
res.print();
// 0 10 -20
// 4 -14 8
// -8 -2 4| Method signature | Description |
|---|---|
| void Resize(int rows, int cols) | resizes matrix to the given rows and columns |
| void print() | prints matrix |
| S21Matrix transpose() | transposes initial matrix and returns new, transposed one |
| bool EqMatrix(const S21Matrix& other) | returns true, if matrices are equal. otherwise 0 |
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