Project #50359 - java HW

Matrix Multiplication!

 

Objective:

 

Write a program that can create two matrices and then it multiplies them!

  • The user first inputs the size length and width
  • Next the user populates that matrix with data
  • The user then inputs the size length and width of the next matrix
  • Once again they populate it
  • Next the program must check to see if the dimensions match
    • A n-by-m matrix can only be multiplied by a m-by-l matrix where n, m, and l correspond to the sizes of the matrices.
  • If they do match correctly then create a new matrix and put the newly multiplied info inside of it.
    • Multiply the individual numbers of the first matrix’s columns by the individual number of the other matrix’s row and add those together.
    • The matrix size when multiplying a n-by-m by a m-by-l will result in a n-by-l matrix

 

 

 

Here is a wiki article for more clarification

http://en.wikipedia.org/wiki/Matrix_multiplication

 

 

Example Dialog:

 

Welcome to the matrix multiplier program

 

Please enter the length of the first matrix

1

Please enter the height of the first matrix

3

Please enter the length of the second matrix

3

Please enter the height of the second matrix

3

 

Please enter a value for matrix 1 space 1, 1

3

Please enter a value for matrix 1 space 1, 2

1

Please enter a value for matrix 1 space 1, 3

4

Please enter a value for matrix 2 space 1, 1

1

Please enter a value for matrix 2 space 1, 2

3

Please enter a value for matrix 2 space 1, 3

8

Please enter a value for matrix 2 space 2, 1

2

Please enter a value for matrix 2 space 2, 2

4

Please enter a value for matrix 2 space 2, 3

6

Please enter a value for matrix 2 space 3, 1

8

Please enter a value for matrix 2 space 3, 2

0

Please enter a value for matrix 2 space 3, 3

9

 

3 1 4

X

1 3 8

2 4 6

8 0 9

=

37 13 66

DONE!

 

 

Finally:

Upload the .java file to the dropbox

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Due By (Pacific Time) 12/04/2014 11:30 pm
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