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Using the Calculation History

Re-calculating an Expression

You can edit a calculation expression in the calculation history and then re-calculate the resulting expression. Tapping wre-calculates the expression where the cursor is currently located, and also re-calculates all of the expressions below the current cursor location.

Example 1: To change the expression “ans ⋅ 2” to “ans ⋅ 3” in the example below, and then re-calculate

uClassPad Operation

(1)Tap to the right of the expression “ans ⋅ 2” to locate the cursor there.

(2)Delete “2” and input “3”.

Kd

(3)Tap w.

•This re-calculates the expression where the cursor is located, and all the expressions underneath it.

Re-calculated

Important!

Remember that re-calculation is performed starting from the current cursor location. If, after performing the first two steps of the above procedure, you move the cursor to the end of “ans + 6” in line 3 of the calculation history and then tap w, only line 3 is re-calculated.

Not re-calculated (because it is above the cursor location)

Re-calculated

If you edit multiple expressions in the calculation history, always make sure that the cursor is located in the uppermost line that you edited before you tap w.

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