Patent ID: 8280935

Claim:
A graphing calculation apparatus having a function calculating operation, comprising: a mode setting unit configured to set one of a manual mode and an automatic mode based on an instruction made by a user; a key data input unit configured to input key data in accordance with operation of a key input unit performed by the user; a key data registering unit configured to register the key data input by the key data input unit in association with setting contents of the manual mode or the automatic mode set by the mode setting unit; a first function operation executing unit configured to cause the function calculating operation to be performed based on the key data registered in the key data registering unit; a key guide display unit configured to read the registered key data from the key data registering unit in order of storage in order to execute guide display; a guide display control unit configured to, upon executing the guide display of the key data by the key guide display unit, cause subsequent key data to be subjected to the guide display each time inputting of the key data subjected to the guide display by the key data input unit is confirmed, in a case in which the key guide display unit displays key data associated with the manual mode, and to automatically and successively input key data subjected to the guide display in order to cause subsequent key data to be subjected to the guide display, in a case in which the key guide display unit displays key data associated with the automatic mode; and a second function operation executing unit configured to cause the function calculating operation to be performed based on the key data which is input along with control of the guide display by the guide display control unit.