How do you multiply two matrices using pointers?
How to multiply two matrices using pointers in C?
- Pointer saves the memory space.
- The execution time of a pointer is faster because of the direct access to a memory location.
- With the help of pointers, the memory is accessed efficiently i.e. memory is allocated and deallocated dynamically.
Can we multiply 2 pointers in C?
Multiplication and division of pointers are not allowed in C.
Can we perform multiplication on pointers?
Not only multiplying, even addition and division are also not allowed in pointers. The only operation you can do is subtraction, if both the pointers are of same type.
Can you multiply pointers C++?
If you multiply a pointer with another pointer, you multiply the addresses together, not the value it points to. So, you will end up with some ambiguous memory address that points to garbage data or a memory address that doesn’t belong to the program. The same goes for division.
How is matrix multiplication done?
How to multiply two given matrices? To multiply one matrix with another, we need to check first, if the number of columns of the first matrix is equal to the number of rows of the second matrix. Now multiply each element of the column of the first matrix with each element of rows of the second matrix and add them all.
What is the condition for matrix multiplication?
When is matrix multiplication defined? In order for matrix multiplication to be defined, the number of columns in the first matrix must be equal to the number of rows in the second matrix.
How do you find the product of two matrices?
The product of two matrices can be computed by multiplying elements of the first row of the first matrix with the first column of the second matrix then, add all the product of elements. Continue this process until each row of the first matrix is multiplied with each column of the second matrix.
Which operation can be performed on pointers?
We can perform arithmetic operations on the pointers like addition, subtraction, etc. However, as we know that pointer contains the address, the result of an arithmetic operation performed on the pointer will also be a pointer if the other operand is of type integer.
Can pointer variable be multiplied?
Just as how you can add, subtract, multiply and divide, etc a value to a variable, you can do all these functions on a pointer also. no we cant multiply a pointer with a value. pointers are used just to point to the address of the values and using of pointers may cause security breach so better not to use them.
How to multiply two matrix using pointers?
Which will help in boosting your pointer knowledge. In array notation to multiply two matrix we use sum += A [row] [i] * B [i] [col]; which in pointer notation is equivalent to sum += (* (* (A + row) + i)) * (* (* (B + i) + col)); Program to multiply two matrix using pointers?
How to multiply two matrices in Python?
In array notation to multiply two matrix we use sum += A [ row][ i] * B [ i][ col]; which in pointer notation is equivalent to sum += (*(*( A + row) + i)) * (*(*( B + i) + col));
Why is the execution time of a pointer faster in C?
The execution time of a pointer is faster because of the direct access to a memory location. With the help of pointers, the memory is accessed efficiently i.e. memory is allocated and deallocated dynamically. Pointers are used with data structures. It means ‘p’ is a pointer variable which holds the address of another integer variable.