Added each, eachInRow, eachInColumn, eachNonZero methods (issue #57)
Added some iterative methods to Matrix, also added Matrix.power() method
Removed unused methods
Finally, added some iterative methods in issue #57
Fixed (issue #57)
Added and fixed all iterative methods (issue #57)
Added and fixed all iterative methods (issue #57)
Added and fixed all iterative methods (issue #57)
Update AbstractMatrix.java
Update AbstractMatrix.java
Update AbstractSafeMatrix.java
Update CCSMatrix.java
Update CRSMatrix.java
Update CRSMatrix.java

Fixed bug with eachNonZeroInRow()
Update CCSMatrix.java
Update CCSMatrix.java

Refactored eachNonZeroInColumn method
Update CCSMatrix.java

Fixed error
Update CRSMatrix.java

Refactored eachNonZeroInRow method
Merge pull request #79 from SamoylovMD/master

Added some iterating methods to Matrix (fixes #57)