CA1015858A - Programmable electronic calculator for evaluating mathematical problems - Google Patents

Programmable electronic calculator for evaluating mathematical problems

Info

Publication number
CA1015858A
CA1015858A CA930,542A CA930542A CA1015858A CA 1015858 A CA1015858 A CA 1015858A CA 930542 A CA930542 A CA 930542A CA 1015858 A CA1015858 A CA 1015858A
Authority
CA
Canada
Prior art keywords
programmable electronic
electronic calculator
mathematical problems
evaluating mathematical
evaluating
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.)
Expired
Application number
CA930,542A
Inventor
William M. Kahn
Roy W. Reach (Jr.)
David Shapiro
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Priority to CA193,017A priority Critical patent/CA1007750A/en
Application granted granted Critical
Publication of CA1015858A publication Critical patent/CA1015858A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
  • Complex Calculations (AREA)
  • Input From Keyboards Or The Like (AREA)
CA930,542A 1964-06-26 1965-05-12 Programmable electronic calculator for evaluating mathematical problems Expired CA1015858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA193,017A CA1007750A (en) 1965-05-12 1974-02-20 Electronic calculator for evaluating mathematical problems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37822164A 1964-06-26 1964-06-26

Publications (1)

Publication Number Publication Date
CA1015858A true CA1015858A (en) 1977-08-16

Family

ID=23492252

Family Applications (1)

Application Number Title Priority Date Filing Date
CA930,542A Expired CA1015858A (en) 1964-06-26 1965-05-12 Programmable electronic calculator for evaluating mathematical problems

Country Status (4)

Country Link
JP (3) JPS524141B1 (en)
CA (1) CA1015858A (en)
DE (1) DE1499236A1 (en)
GB (1) GB1106427A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342381B2 (en) * 1973-05-07 1978-11-10
JPS5818654B2 (en) * 1974-07-17 1983-04-14 キヤノン株式会社 Arithmetic device based on key operations according to mathematical formulas
JPS5345546Y1 (en) * 1976-10-14 1978-10-31
JPS5424595Y1 (en) * 1977-10-18 1979-08-20
DE3210853A1 (en) * 1982-03-24 1983-10-06 Siemens Ag Machine for communication purposes in a man-machine system

Also Published As

Publication number Publication date
JPS524141B1 (en) 1977-02-01
JPS5520253B1 (en) 1980-05-31
DE1499236A1 (en) 1969-10-02
GB1106427A (en) 1968-03-20
JPS5520254B1 (en) 1980-05-31

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