Saturday, June 1, 2013


The next update will add more matrix functionality to the paid version.  I am working on adding the following.
  • Row echelon form.
  • Reduced row echelon form.
  • LU decomposition
  • QR decomposition
  • Eigenvalues and eigenvectors
  • Cofactor matrix.
Eigenvalues and eigenvectors will only be calculated in decimal mode but the rest will work in both decimal and integer modes.  In addition, there will be a new setting to view the steps for matrix some matrix operations.  For example, when enabled, you will be able to view the steps used to transform a matrix into row reduced echelon form.

There isn't enough space on the default keyboard to add all of these new operations.  Therefore, there will be a new "more" key on the default keyboard.  The more key can be added to your custom keyboards too.  When you press the more key, a new screen will be brought up that will list all keys that are not on your keyboard.  On the default keyboard, pressing the more key will list these new matrix operations (since they won't be on the default keyboard).

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