JPS57212562A - Electronic calculator - Google Patents

Electronic calculator

Info

Publication number
JPS57212562A
JPS57212562A JP9866181A JP9866181A JPS57212562A JP S57212562 A JPS57212562 A JP S57212562A JP 9866181 A JP9866181 A JP 9866181A JP 9866181 A JP9866181 A JP 9866181A JP S57212562 A JPS57212562 A JP S57212562A
Authority
JP
Japan
Prior art keywords
expression
keys
depressed
displayed
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9866181A
Other languages
Japanese (ja)
Inventor
Akiyoshi Kinoshita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP9866181A priority Critical patent/JPS57212562A/en
Publication of JPS57212562A publication Critical patent/JPS57212562A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)
  • Digital Computer Display Output (AREA)

Abstract

PURPOSE:To facilitate the execution of a complicated algebraic operation, by displaying inputted data and operation results on the first display part and designating and displaying an operation expression on the second display part. CONSTITUTION:After an expression mode key 11 is depressed, entry keys 4, operation keys 5, alphabetic keys 7, and designating keys 8 are used to input an algebraic expression, and this expression is displayed on an expression display part 3. Next, after a data designating key 9 is depressed, alphabetic keys 7, entry keys 4, and operation keys 5 are used to input data to be substituted. Inputted data A1-A3 are displayed in display positions a1-a3 of an input data part A. When a calculation command key 10 is depressed, the operation of the inputted algebraic expression is executed, and operation results B1- B3 are displayed in display positions b1-b3 of an operation value part B. Thus, the operation of a complicated algebraic expression is executed easily.
JP9866181A 1981-06-25 1981-06-25 Electronic calculator Pending JPS57212562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9866181A JPS57212562A (en) 1981-06-25 1981-06-25 Electronic calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9866181A JPS57212562A (en) 1981-06-25 1981-06-25 Electronic calculator

Publications (1)

Publication Number Publication Date
JPS57212562A true JPS57212562A (en) 1982-12-27

Family

ID=14225691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9866181A Pending JPS57212562A (en) 1981-06-25 1981-06-25 Electronic calculator

Country Status (1)

Country Link
JP (1) JPS57212562A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0496585A3 (en) * 1991-01-25 1994-05-18 Hewlett Packard Co Method and apparatus for solving multiple equations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0496585A3 (en) * 1991-01-25 1994-05-18 Hewlett Packard Co Method and apparatus for solving multiple equations

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