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Write a method to add two matrices. The header of the method is as follows:
public static double[ ][ ] addMatrix(double[ ][ ] a, double[ ][ ] b)
In order to be added the two matrices must have the same dimensions and the same or compatible types of elements. Let c be the resulting matrix. Each element cij is aij + bij. For example, for two 3x3 matrices a and b, c is
a11 a12 a13 b11 b12 b13 c11 c12 c13
a21 a22 a23 + b21 b22 b23 = c21 c22 c23
a31 a32 a33 b31 b32 b33 c31 c32 c33
Write a test program that prompts the user to enter two 3x3 matrices and displays their sum.

Sagot :

tutorconsortium116

One of the test programs asks the user to enter their sum it is 45.

Explain about the C++ program?

C++ is an object-oriented programming language that offers programmes a distinct structure and permits code reuse, reducing development costs. Since C++ is portable, it can be used to create apps that can be customized for different systems. Learning C++ is enjoyable and simple.

Over other well-known programming languages like Python and Java, C++ is reputed to be among the most challenging to master. Because it has a more complex syntax and uses multiple paradigms, C++ is challenging to master.

Due to its statically typed syntax and quicker code compilation, C++ is faster than Python. Python is slower than C++ because it employs the interpreter and enables dynamic typing, which slows down compilation.

Output:

Put array elements here:

1

2

3

4

5

6

7

8

9

Sum: 45

To learn more about C++ program refer to:

https://brainly.com/question/14467523

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