From 89007bfa9f5671014fad054b974e546dbb3334cc Mon Sep 17 00:00:00 2001
From: Leto <contact@letonet.fr>
Date: Mon, 23 Dec 2024 21:04:43 +0100
Subject: [PATCH] Added Matrix class and basic functions

---
 main.cpp     | 15 ++++++++
 matrices.cpp |  0
 matrices.h   | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 114 insertions(+)
 create mode 100644 main.cpp
 create mode 100644 matrices.cpp
 create mode 100644 matrices.h

diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..60b2481
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,15 @@
+#include<iostream>
+#include "matrices.h"
+// using namespace std;
+
+int main()
+{
+    srand(time(0));
+
+    Matrix test(3,2);
+    test.Randomize();
+    test.Print("");
+    test.Transpose();
+    test.Print("");
+    return 0;
+}
\ No newline at end of file
diff --git a/matrices.cpp b/matrices.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/matrices.h b/matrices.h
new file mode 100644
index 0000000..244bdb5
--- /dev/null
+++ b/matrices.h
@@ -0,0 +1,99 @@
+#include <string>
+#include <vector>
+
+class Matrix{
+    private:
+        std::vector<std::vector<float>> values;
+    public:
+        void Randomize();
+        void Randomize(float, float);
+
+        void Set(float);
+
+        void Factor(float);
+
+        void Add(float);
+
+        void Print(std::string_view);
+
+        void Transpose();
+
+        // Constructors
+        Matrix(int, int);
+};
+
+// Constructs a zero matrix
+Matrix::Matrix(int rows, int cols){
+    for(int m = 0; m < rows; m++){
+        std::vector<float> buffer = {};
+        for(int n = 0; n < cols; n++){
+            buffer.push_back(0.0F);
+        }
+        this->values.push_back(buffer);
+    }
+}
+
+// Print a matrix in terminal, with a title
+void Matrix::Print(std::string_view titre){
+    std::cout << titre << std::endl;
+    for(int m = 0; m < values.size(); m++){
+        std::cout << '|';
+        for(int n = 0; n < values[m].size(); n++){
+            std::cout << values[m][n] << "|";
+        }
+        std::cout << std::endl;
+    }
+}
+
+// Add a constant value to every matrix case
+void Matrix::Add(float value){
+    for(int m = 0; m < this->values.size(); m++){
+        for(int n = 0; n < this->values[m].size(); n++){
+            this->values[m][n] += value;
+        }
+    }
+}
+
+// Multiply every matrix case by a given factor
+void Matrix::Factor(float value){
+    for(int m = 0; m < this->values.size(); m++){
+        for(int n = 0; n < this->values[m].size(); n++){
+            this->values[m][n] *= value;
+        }
+    }
+}
+
+// Set a matrix to a given value
+void Matrix::Set(float value){
+    this->Factor(0.0F);
+    this->Add(value);
+}
+
+// Transpose a matrix
+void Matrix::Transpose(){
+    std::vector<std::vector<float>> buffer = this->values;
+    this->values = {};
+
+    // Invert matrix size
+    for(int m = 0; m < buffer[0].size(); m++){
+        std::vector<float> line = {};
+        for(int n = 0; n < buffer.size(); n++){
+            line.push_back(buffer[n][m]);
+        }
+        this->values.push_back(line);
+    }
+}
+
+// Randomize a matrix from 0.0F to 10.0F
+void Matrix::Randomize(){
+    this->Randomize(0.0F, 10.0F);
+}
+
+// Randomize a matrix from min to max
+void Matrix::Randomize(float min, float max){
+    for(int m = 0; m < this->values.size(); m++){
+        for(int n = 0; n < this->values[m].size(); n++){
+            this->values[m][n] = min + ((float)rand()/(float)(RAND_MAX)) * (max - min);
+        }
+    }
+}
\ No newline at end of file