Patent ID: 8843537

Claim:
An electronic calculator comprising: a mathematical expression input section which receives an input of a mathematical expression from a user; a mathematical expression display control section which displays the mathematical expression input from the mathematical expression input section on a display section in an arithmetic manner; a cursor display control section which displays a cursor on the display section in a movable manner according to an operation of the user with respect to the mathematical expression displayed by the mathematical expression display control section; a mathematical expression color process section which performs a color process to respectively give predetermined different colors to components being nested in a term and having different hierarchies in the mathematical expression displayed by the mathematical expression display control section; and a cursor color process section which, when the cursor is moved over the mathematical expression displayed in the arithmetic manner, performs a color process to give to the cursor displayed by the cursor display control section, a color from among the predetermined different colors which is given to a component having a hierarchy to which the cursor currently belongs.