JPS56147240A - Minicomputer having integral operation function - Google Patents

Minicomputer having integral operation function

Info

Publication number
JPS56147240A
JPS56147240A JP5009080A JP5009080A JPS56147240A JP S56147240 A JPS56147240 A JP S56147240A JP 5009080 A JP5009080 A JP 5009080A JP 5009080 A JP5009080 A JP 5009080A JP S56147240 A JPS56147240 A JP S56147240A
Authority
JP
Japan
Prior art keywords
key
precision
mode
integral
integral operation
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.)
Granted
Application number
JP5009080A
Other languages
Japanese (ja)
Other versions
JPS6131891B2 (en
Inventor
Hisashi Ito
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP5009080A priority Critical patent/JPS56147240A/en
Priority to GB8110834A priority patent/GB2073922B/en
Priority to US06/252,944 priority patent/US4398263A/en
Priority to DE19813115268 priority patent/DE3115268A1/en
Publication of JPS56147240A publication Critical patent/JPS56147240A/en
Publication of JPS6131891B2 publication Critical patent/JPS6131891B2/ja
Priority to HK654/89A priority patent/HK65489A/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation

Abstract

PURPOSE:To execute the definite integral operation with a small number of key operations and obtain an operation result with constant precision, by comparing the preceding integral operation result with the current integral operation result to draw an operation precision and by setting automatically a division number until it reaches a prescribed precision. CONSTITUTION:The write mode of a function to be integrated is set by MODE key 7a and entry keys of key input part 7, and function 1/(X+1) is written into RAM memory 9 by the key operation. Next, the mode is switched to the integration execution mode by MODE key 7a and entry keys; and when integral section data 0 and 2 are entered, 0 and 1 are written into the A register and the B register of RAM memory 9 respectively. When integration execution key EXE 7b is operated under this state, the division number is set automatically, and preceding and current integral operation results are compared with each other to draw the operation precision, and operations are performed successively until it reaches a prescribed precision. Consequently, the definite integral operation is made possible only by designating the integral range.
JP5009080A 1980-04-15 1980-04-15 Minicomputer having integral operation function Granted JPS56147240A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP5009080A JPS56147240A (en) 1980-04-15 1980-04-15 Minicomputer having integral operation function
GB8110834A GB2073922B (en) 1980-04-15 1981-04-07 Calculator having integrating function
US06/252,944 US4398263A (en) 1980-04-15 1981-04-10 Calculator having integrating function
DE19813115268 DE3115268A1 (en) 1980-04-15 1981-04-15 CALCULATOR WITH INTEGRATION FUNCTION
HK654/89A HK65489A (en) 1980-04-15 1989-08-17 Calculator having integrating function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5009080A JPS56147240A (en) 1980-04-15 1980-04-15 Minicomputer having integral operation function

Publications (2)

Publication Number Publication Date
JPS56147240A true JPS56147240A (en) 1981-11-16
JPS6131891B2 JPS6131891B2 (en) 1986-07-23

Family

ID=12849338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5009080A Granted JPS56147240A (en) 1980-04-15 1980-04-15 Minicomputer having integral operation function

Country Status (1)

Country Link
JP (1) JPS56147240A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118696U (en) * 1990-03-20 1991-12-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5426635A (en) * 1977-07-29 1979-02-28 Sharp Corp Electronic desk calculator with function of definite integral

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5426635A (en) * 1977-07-29 1979-02-28 Sharp Corp Electronic desk calculator with function of definite integral

Also Published As

Publication number Publication date
JPS6131891B2 (en) 1986-07-23

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