Matrix Library for C [Under Development Currently - New Version Ported to gmp ]

Initial porting to lgmp partially done .. only fraction of work done ... to be ported soon when i find time....

Fast matrix library for C

This library was designed for performing basic matrix operations .Haskell/python like functions [more like python ] implemented for simple matrix operations
All of the given functions in the header take and throwout ONLY POINTERS TO MATRIX . NOT THE MATRIX ITSELF. Plus the values output /built in for the matrix structure IS ONLY DOUBLE .

Usage :

Matrix Creation :

Create matrix using :

  matrix* <matrix alias>=CreateMatrix(int row,int col);

The function CreateMatrix Creates the required matrix and return pointer to the defined struct in matrix.h

Free Matrix:

Once the work with the matrix is done it is always a good practice to free the pointers to the matrix to avoid any future memory leaks . But be sure before freeing as calling any future functions on the pointer that is free will obviosly result in SegFault !

          free_matrix(matrix*);

Printing Matrix:

Fast printing matrix without the user running 2 for loops to print contents,

          print_matrix(matrix*);

Insertion Of Matrix Elements:

The elements in the matrix start from row=[1...n]/col=[1...n]

Insertion can be done by calling the below function

          insert_element(matrix*<alias>,int row,int col,double <value> );

Copying matrix To call this function there must be a matrix of same dimension already existing or created by user[or overwrite matrix] as the given void function returns nothing

           matrix * a=Create_Matrix(3,4);
           cp_matrix(matrix*<src> ,a<dest>);

Create EYE matrix: Creates a square matrix of only 1 in leading diagonal

          matrix*<alias>=create_eyematrix(int row,int col)

Retrieve Elements from the matrix : The user can call the get_element() function to retrieve the elements or if the user wishes can also use pointers to poke around with the data usage with function:

          <double> a=get_element(matrix*<alias>,int row,int col);

Usage with Pointers:

          matrix* m=Create_Matrix(12,14);
          <double> a=m->data[nth data ];

Write the given matrix to a file : Incase you wish to write the matrix to a file

           dump_matrix(matrix*<alias>,char*<filename.txt>,char* mode);

Generate Random Matrix:

Incase you want to generate matrix that has random float values

           matrix* x=random_matrix(int rows,int cols,int maxval,char * "float") ;

Create Matrix with predefined vals:

The user can use array like contiguous syntax to denote elements of matrix example to create 5x3 matrix there needs to be 15 entries

          matrix* a;
          double arr[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
          insert_multival(a,arr);

Other Functions included in the library:

       Transpose    
       Cofactor
       Adjoint 
       Determinant
       Sum 
       Scalar Product
       Dot Product
       Trace 
       Inverse

References:

  http://theory.stanford.edu/~arbrad/pfe/html