JPS61176656U

JPS61176656U -

Info

Publication number: JPS61176656U
Application number: JP19851684U
Authority: JP
Priority date: 1984-12-26
Filing date: 1984-12-26
Publication date: 1986-11-04

Description

[Brief explanation of the drawing]

図面はこの考案の一実施例を示すもので、第１
図は回路構成を示すブロツク図、第２図は数式プ
ログラムのキー操作を例示する図、第３図は第２
図のキー操作に対応した数式メモ部の記憶状態を
示す図、第４図はキー操作とこれに対応した表示
部の状態を示す図、第５図Ａはメモキーの操作に
応じた処理内容を示すフローチヤート、第５図Ｂ
は「ＩＮ」キーの操作に応じた処理内容を示すフ
ローチヤート、第５図Ｃは「ＯＵＴ」キーの操作
に応じた処理内容を示すフローチヤート、第６図
は計算キーの操作に応じた処理内容を示すフロー
チヤートである。１……キーボード、１ａ……「ＩＮ」キー、１
ｂ……「ＯＵＴ」キー、１ｃ……計算キー、１ｄ
……実行キー、１ｅ……メモキー、２……キー判
断部、３……ＣＰＵ、３ａ……ＲＯＭ、３ｂ……
ＲＡＭ、３ｃ……演算回路、４……数式メモ部、
５……表示メモリ制御部、６……入力メモリ、７
……変数メモリ、８……表示レジスタ、９……表
示部。 The drawing shows one embodiment of this invention.
The figure is a block diagram showing the circuit configuration, Figure 2 is a diagram illustrating key operations for a mathematical program, and Figure 3 is a block diagram showing the circuit configuration.
Figure 4 is a diagram showing the memory state of the formula memo section corresponding to the key operations shown in the figure, Figure 4 is a diagram showing the key operations and the corresponding display state, and Figure 5A is a diagram showing the processing contents according to the memo key operation. Flowchart shown in Figure 5B
is a flowchart showing the processing content in response to the operation of the "IN" key, Figure 5C is a flowchart showing the processing content in response to the operation of the "OUT" key, and Figure 6 is the processing in response to the operation of the calculation key. This is a flowchart showing the contents. 1... Keyboard, 1a... "IN" key, 1
b..."OUT" key, 1c...Calculation key, 1d
...Execution key, 1e...Memo key, 2...Key judgment unit, 3...CPU, 3a...ROM, 3b...
RAM, 3c... Arithmetic circuit, 4... Formula memo section,
5...Display memory control unit, 6...Input memory, 7
...Variable memory, 8...Display register, 9...Display section.

Claims

[Scope of utility model registration request]

A formula memo section for storing a plurality of formula programs; a formula selection means for selecting a desired formula program from the plurality of formula programs stored in the formula memo section; and a formula selection means for storing the formula program selected by the formula selection means. It is characterized by comprising a formula register, a changing means for changing and setting the contents of a formula program stored in the formula register, and a calculation means for performing a formula operation using the formula program changed and set by the changing means. A small electronic calculator with a mathematical formula programming function.