Patent ID: 9063913
Filing Date: 2015-06-23
Classification: G06F

Abstract:
1. An expression input apparatus comprising: an expression display unit that displays an expression; an expression-and-color registering unit that registers (i) an expression portion specified by a user as a range to be copied in the displayed expression and (ii) a color specified by the user, with the expression portion and the color being associated with each other; an expression highlighting control unit that highlights each of (i) the registered expression portion and (ii) an expression portion equivalent to the registered expression portion, in the expression displayed on the expression display unit, with the color registered in association with the registered expression portion; a color-and-position specifying unit that, based on an operation by the user, specifies (i) the color registered in association with the registered expression portion, and (ii) a paste position on the expression display unit; and a pasting unit that pastes the registered expression portion, which is registered by the expression-and-color registering unit in association with the specified color, on the specified paste position, and highlights the pasted registered expression portion with the specified color; wherein the expression displayed on the expression display unit includes the registered expression portion and a variable number connected with the registered expression portion by an equal sign; and wherein the expression input apparatus further comprises: an expression-and-variable registering unit that registers the variable number connected with the registered expression portion by the equal sign in association with the registered expression portion as the specified range; and a variable highlighting control unit that highlights, in the expression displayed on the expression display unit, the registered variable number with the color registered by the expression-and-color registering unit in association with the registered expression portion.