The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2000
Filed:
Apr. 02, 1998
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
It is an object of the invention to solve problems with a calculator capable of displaying a graph of a function in that the characteristics of a graph displayed by inputting a function can not be recognized when a desired display range is not at an appropriate value and in that a value to change the display range has had to be input on a trial and error basis, which has made the operation very complicated. A calculator according to the invention displays a graph of a function on a reduced scale, further displays buttons for increasing and decreasing display ranges of an X-axis and a Y-axis around the graph and changes the graph of the function and displays it again in response to instructions by the user on the buttons. This makes it possible to correct the display ranges of the graph of the function easily.