Casio FX-9860GII-L-IH User Guide - Page 78

2-2-6 Special Functions k History Function The history function maintains a history of calculation expressions and results in the Math input mode. Up to 30 sets of calculation expressions and results are maintained. b+cw *cw You can also edit the calculation expressions that are maintained by the history function and recalculate. This will recalculate all of the expressions starting from the edited expression Example To change "1+2" to "1+3" and recalculate Perform the following operation following the sample shown above. ffffdDdw # The value stored in the answer memory is always dependent on the result produced by the last calculation performed. If history contents include operations that use the answer memory, editing a calculation may affect the answer memory value used in subsequent calculations. - If you have a series of calculations that use the answer memory to include the result of the previous calculation in the next calculation, editing a calculation will affect the results of all the other calculations that come after it. - When the first calculation of the history includes the answer memory contents, the answer memory value is "0" because there is no calculation before the first one in history. 200509401