Method and apparatus for computation stack recovery in a...

Details Method and apparatus for computation stack recovery in a... Method and apparatus for computation stack recovery in a...

G - Physics

06

F

354/148

G06F 11/00 (2006.01) G06F 11/14 (2006.01)

Patent

CA 1277771

Abstract A method and apparatus for recovery of a computation stack in a calculator is presented in accordance with a preferred embodiment of the present invention. In a calculator employing a stack for the storage of data to be utilized in a calculation, provision is made to store the contents of the stack before a calculation is performed. If, after the calculation is performed a user desires to "undo" the calculation, he may strike an "undo" key. The original state of the stack is then restored.

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