JPS5843050A - Electronic formula dictionary - Google Patents

Abstract

PURPOSE:To ensure the deformation, operation, etc. of a formula, by storing a deformed formula along with various types of formulae into a dictionary memory and carrying out an operation based on said deformed formula and with a search of the formula and a variable input. CONSTITUTION:The name of a formula is inputted from a key input part 1 with the operation of a KANA (Japanese syllabary) key to be stored in a register 8. Then a formula key 2 is operated to retrieve the corresponding formula out of a dictionary memory 6 through a searching circuit 7. This retrieved formula is stored in an RAM10. A data of formula includes the ares of the ''name of formula'', ''formula'', ''deformed formula address'', and ''deformed formula'' respectively. Both the ''formula'' and ''deformed formula'' are stored in the areas 10a and 10b of the RAM10. When the use of a deformed formula is desired, the deformed formula address is inputted through the part 1. Then the ''formula'' or ''deformed formula'' is inputted to an instruction decoder 13 and at the same time displayed 12. Then the desired variable number is fed to a data memory 15, and an operation is carried out by an ALU9. The result of this operation is displayed 12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic official dictionary that performs calculations based on stored rituals.

In recent years, electronic translation machines that can translate languages from different countries into each other have been put into practical use and are becoming popular. Therefore, if you want to make full use of the principle of this electronic translator, you can store a large number of formulas in memory and construct an electronic nine-official dictionary as shown on the left. There is a problem that the top price is very low.
The control unit 5 controls the dictionary memory C1 search circuit 11 of the dictionary memory 6, the manual word register 8, and the ALU.
(processing unit) 9, RAM (random access memory) 1o1, address circuit 11, display section 12, etc. are controlled. However, the format of the data stored in the dictionary memory 6 is shown in FIG. As shown,
"Takename", "Official", "Deformed address", "Deformed form"
It consists of up to 5 areas depending on the shape of the "transformation" type.
Even the type is memorized. The following table shows examples of formulas stored in the dictionary memory 6 and their modified forms.
The name ``Fukuri'' is a formula for calculating data, where FV is the total principal and interest (one value, future value), pv is the current value, ■ is the interest rate, and N is the period. In addition, “o-on” and “loan (kishu)” are formulas and modified forms for unpaid and early payment of loans. In the loan formula in the table above, Pv is the current value, PM
T is the payment, N is the period, and ■ is the interest rate. ``Two Newton method'' indicates a program that calculates the interest rate using the two Newton method. Therefore, the contents stored in the dictionary memory C are as shown in FIG.
It is read by decircuit 2 and written to RAMJO.

This RAM 10 is divided into an official area 1'0a and a modified area 10b. Since the address of the RAMJ O is specified by the address circuit 11Vcl, the data read from the RAMJO is sent to the storage learning decoder 13 and the work memory 14. The instrument 2 decoder 13 is IAMJ
Decode the data from O and send the decoded output to M
This data memory 1 is given to U9, address circuit 11, and work memory 14, and is also input to data memory 15.
5, Deninos for the variable items [1] to [5] designated by the variable designation key 4 from the key m1 are written via the control unit j and ALUj. In addition, the instruction decoder 1311C decodes the work memory 1.
4 is controlled. Next, the operation of the above embodiment will be explained with reference to the flowchart of FIG. First, key human resources department 1
Enter the official name using the Kana key. By inputting this official name, the control unit 5
The key is discriminated as shown in FIG. 8, and in step 8, the input key code is written into the input word register 8 and displayed on the display section 12. Then, following the above-mentioned input of the official name, the official key 2 is operated. When the official key 2 is operated, the control section 2 performs key discrimination up to step B, and then steps 8. , the contents of the official master craftsman rear are read out from the Eli dictionary memory 6 to the Nate circuit 1 and compared with the contents of the input word register 8.0 The data group for the official names that match by this comparison or the official name with the most matching parts, In other words, in step 84, the formula and modified address in the data format shown in FIG.
0 Write in the official area 10m of this RAMJO The TL formula will be displayed on the display unit 12.0 Now, for example, set the official name "Fukuri" 1m1 by operating the kana key from key i1, and then press official key 2. If operated, the formula for compound interest calculation and the modified address (address 0 will be written in the ceremony area 10m of RAM 10) from the dictionary memory 6.
The formula is then displayed on the display section 12. Note that "↑" represents the base power.

Next, use the variable specification key 4t from the key human power section 1 to specify the variable 0. For example, use the compound interest formula above to calculate the compound interest on a principal of 500,000 yen at an annual interest rate of 6%. If you calculate that the total principal and interest after 7 years will be 0,
Using the numeric keypad, equal key, and variable designation key 4, first perform the key operation r7=(4)J. The above-mentioned equal key and variable designation key 40 combination operation is performed in step 8.
It is determined in step 8. The assignment is processed by -rL, so. This part 5 and ALU #Q are written to the 2nd area of the data memory 15. 0 When the key operation of rt=(4)J is performed as described above, 1 is written to the moria of [4] of the data memory 15. Number indicating the period (year)
Similarly, for the interest rate, ro, 6 is written.
g=(s)J, for the principal rsoooooo= (2
)J key operation 0 The above key operation performs the substitution process of ST, knob 8I, n1 data memory 15
[3].

The interest rate and principal amount are respectively written in the area [2].

The data written in the data memory 15 is sequentially displayed on the display unit 12 during writing. After inputting the above variables, press the [MuNsJ, r(t)J] key. By key operation, the process proceeds to step 81t through step 8, and the formula is executed nine times.
RAM14), the same calculation as the normal program calculation is performed in MLUG using the ceremony within 10m of the ceremony area and the data within data storage 1s, and the result is 1tr751816.1295 in the above calculation example. is obtained and written in area [1] of data memory 15.
1. Also, if you want to find the answer using a modified form of the above formula, after inputting the variables, -
Press the N8 key S and the item designation keys 4 of [2] to [5] in combination. For example, if you want to find the period N,
rA) 18jr(4) Perform all J key operations. With this key operation, step 8. Step 8. Go to 8
Refer to the modified format address 7 written in the official area 1eaK of the program M10, and input the modified format from the address address 1 of the dictionary memory 6. Next, proceed to step S, and proceed to the above transformation area 1.
．． Eri program calculation is executed on the transformed format read in 0b and the data in the data memory 15, and the answer "7" is obtained and written in the data area and displayed on the display section 12.

FIG. 5 is a diagram showing an example of key operations and an example of display when performing the above-mentioned compound interest calculation.

In addition, the above-mentioned example. Now, enter the official name to search for the formula in the dictionary memory 6fcf)t, and enter other symbols such as tV or Pv to search for the official formula.XlX0i*, display section 12T - The two-level display allows formulas to be displayed even while variables are being input, and even modified forms, etc., to be displayed, making it even more convenient.

As described above, according to the present invention, modified forms are stored along with various formulas in the dictionary memo, and calculations based on the formulas are executed by searching tables and inputting variables, so that only the various formulas that need to be memorized are stored. Rather than formula transformations, calculations, etc.
;Can provide possible electronic official compendium0

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a circuit configuration diagram, FIG. 2 is a storage data format of the dictionary memory in FIG. 1, FIG. 3 is a flowchart showing the operation contents, and FIG. shows an official display example y11 5th! ! 1 is a diagram showing an example of a key operation and display contents corresponding to the key operation. To...Key human resources department, 2...Official key, 3...AN,
S key, -...Item specification key, 6...Dictionary memory,
10...R, AM (random access, memory)
, 13... Instruction 1M decoder, 15...
・Data memory.

Claims (1)

[Scope of Claims] A dictionary memory that stores various formulas and their modified forms;
Based on input □Search and memorize the dictionary memory above. A simple way to read out the formula and display it on the display.
and an arithmetic means for calculating the answer to the specified variable by inputting a variable converter for '2' displayed on the area display section in the search hand. Official dictionary/