From 6b191c8f7c934daf72bd72f519bf5987bbce533c Mon Sep 17 00:00:00 2001
From: Soikk
Date: Sat, 23 Oct 2021 16:17:34 +0200
Subject: A matrix calculator made in C

Made in roughly 2 days, most of the time was spent polishing the "interface"
---
 include/matrix-operations.h | 87 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 include/matrix-operations.h

(limited to 'include/matrix-operations.h')

diff --git a/include/matrix-operations.h b/include/matrix-operations.h
new file mode 100644
index 0000000..5d9a844
--- /dev/null
+++ b/include/matrix-operations.h
@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+typedef enum errors{
+	NOT_EQUAL,
+	NOT_MULTIPLIABLE,
+	NOT_SQUARE,
+	ZERO_DET,
+	UNKNOWN
+} error_t;
+
+typedef struct matrix{
+	size_t rows;
+	size_t columns;
+	float **matrix;
+} matrix_t;
+
+
+// Handles all of the different possible errors
+matrix_t matrixError(error_t error);
+
+// Creates a rows x columns matrix;
+matrix_t createMatrix(size_t rows, size_t columns);
+
+// Fills the matrix with values provided by the user
+void initializeMatrix(matrix_t *m);
+
+// Returns true if the matrix is square, false otherwise
+int isSquare(matrix_t m);
+
+// Displays the given matrix
+void displayMatrix(matrix_t m);
+
+// Returns the identity matrix n x n
+matrix_t identityMatrix(size_t n);
+
+// Returns a matrix of the same size as "m" filled with the number "n"
+matrix_t fillN(matrix_t m, float n);
+
+// Adds a number to all the positions of the matrix and returns the result
+matrix_t addN(matrix_t m, float n);
+
+// Substracts a number from all the positions of the matrix and returns the result
+matrix_t substractN(matrix_t m, float n);
+
+// Adds two matrices together and returns the result
+matrix_t addMatrices(matrix_t a, matrix_t b);
+
+// Negates all of the positions of the matrix and returns the result
+matrix_t negateMatrix(matrix_t m);
+
+// Substracts matrix "b" from "a" and returns the result
+matrix_t substractMatrices(matrix_t a, matrix_t b);
+
+// Multiplies all of the positions of the matrix by "n" and returns the result
+matrix_t multiplyByN(matrix_t m, float n);
+
+// Divides all of the positions of the matrix by "n" and returns the result
+matrix_t divideByN(matrix_t m, float n);
+
+// Multiplies matrix "a" by "b" and returns the result
+matrix_t multiplyMatrices(matrix_t a, matrix_t b);
+
+// Divides matrix "a" by "b" and returns the result
+matrix_t divideMatrices(matrix_t a, matrix_t b);
+
+// Raises the matrix to the nth power and returns the result
+matrix_t raiseMatrixToN(matrix_t m, int n);
+
+// Creates a submatrix from "matrix" without the column "column" and row "row" of "matrix"
+matrix_t createSubmatrix(matrix_t m, size_t row, size_t column);
+
+// Returns the determinant of the given (square) matrix
+int determinant(matrix_t m);
+
+// Returns the cofactor matrix of the given matrix
+matrix_t cofactor(matrix_t m);
+
+// Returns the transpose matrix of the given matrix
+matrix_t transpose(matrix_t m);
+
+// Returns the adjugate matrix of the given matrix
+matrix_t adjugate(matrix_t m);
+
+// Returns the inverse matrix of the given matrix
+matrix_t inverse(matrix_t m);
\ No newline at end of file
-- 
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