JPS58103057A - Electronic calculator - Google Patents

Abstract

PURPOSE:To display results of verification of accounts, which is performed plural times, and calculated values obtained by decomposing a calculating expression and calculating it, by displaying selectively calculated values calculated in a calculating part and providing plural display parts where data can be recorded and displayed. CONSTITUTION:Display parts 10-16, where calculated values calculated in a calculating part 2 are diaplayed selectively, and keys 10a-16a and 10b-16b for turning on and off displays of display parts 10-16 are provided. Consequently, results of verification of accounts, which is performed plural times as required, and calculated values obtained by decomposing a complicated calculating expression and calculating it are displayed independently of one another.

Description

[Detailed description of the invention] This invention relates to improvements in electronic desktop calculators.

There are a wide variety of electronic desktop calculators (hereinafter simply referred to as calculators) K, depending on the middle of the calculation, but most of them have a calculation section, such as the calculator 1 shown in Figure 1. The basic idea is to display the calculated value calculated by the operation of key 2 on one display unit 4.Today, it''i! is used to temporarily store the calculated value as needed.
Many of them are equipped with a plurality of memory mechanisms 5.

When using the conventional calculator 1 mentioned above to calculate all complex calculations involving addition, subtraction, multiplication, division, etc., it is difficult to perform the calculations with a series of key operations, or it is difficult to calculate all the calculations that have already been calculated. Since the values may have to be used as calculation factors for later calculations, it has become necessary to temporarily record the intermediate calculated values on a piece of paper or the like using a writing instrument such as a pencil. In addition, even when a series of calculation results are obtained, when all calculations are to be verified, all calculation results must be recorded on pieces of paper, etc. Even when a calculated value can be obtained, if there are many calculation factors, a subtotal value is calculated for each appropriate calculation subdivision, and the calculation is performed while checking the subtotal value.In that case, the subtotal value is
Record it on a piece of paper or in one corner of a ledger, or use a memory mechanism of 5'ft.
Previously, all subtotal values were memorized using a computer, and the subtotal values were verified at the time of verification.
．． Furthermore, even if all subtotal values are stored using the memory mechanism 5, the display unit 41 only has one 4-digit display, so multiple subtotal values can be fully viewed, and calculations can be made while checking them, or subtotal values can be added together. In this case, it was necessary to record each subtotal value on a piece of paper using a pencil, ballpoint pen, etc. 〇In contrast, conventional printers with roll paper have the ability to record the calculation process as needed. There was a calculator 6. That is, as shown in FIG. 2, the printer calculator 6 is equipped with a calculation section 2, a display section 4, and a function of printing all desired recording values during calculation on a roll paper 8 using a printer 7. Therefore, if you use this printer calculator 6 when calculating the above-mentioned complicated calculation formula or when performing calculations that require verification, the calculation means or calculated values will be recorded each time, so you can save them to a piece of paper as described above. A printer calculator that eliminates the inconvenience of temporary recording, allows you to calculate complex calculation formulas by dividing them into parts, and check subtotals while visually checking each other. 6
Equipped with tri O-roll paper 8 increases the volume, impairs the portability that is a feature of recent calculators, and also requires replenishment of roll paper 8, which requires time and effort to dispose of printed paper. There were various inconveniences such as.

The present invention was made by focusing on the above-mentioned disadvantages of conventional calculators, and is provided with a plurality of display sections capable of selectively displaying, recording and displaying calculated values calculated by a calculation section in an electronic desktop calculator. The purpose of this invention is to solve all the above-mentioned conventional problems.

Hereinafter, this invention will be explained based on the embodiments shown in FIGS. 3 to 6. In the following explanation, parts that are the same as or similar to the conventional ones will be denoted by the same reference numerals in the figures, and redundant explanations will be omitted. Omitted.

FIG. 3 shows a calculator 9 according to a first embodiment of the present invention.
The 2-digit calculation section and 10 to 16 are display sections, and each of the seven display sections 10 to 16 has keys IDa to 16a and display i0 for turning on the display of each display section 10 to 16.
Keys 10b to 16b for setting F'F are provided. Then, using the entire calculator 9 according to the first embodiment, for example, 1+2+3+4=? When performing all the calculations, use the following calculation procedure. First, press the key 10a and display section 1.
0 display 'tON, then 1 +2+3 of calculation unit 2
Press the +4= key. Then the answer is 10 on the display.
If you want to further check whether this value is correct or not, press the key 11a to use the display section 11, and then press the key 3 of the calculation section 2 in the same way as above to display the value on the display section 11. Suppose that the calculated value 9, which is different from part 10, is displayed.In this case, use the display part 12 to repeat the calculation, and in the same way as above press [12a key → 1 +2+3+4= of calculation part 2]. The operation of "pressing a key→comparing the calculated value on the display section 12 with the calculated values on the other display sections 10 and 11" may be performed. When the calculation is completed in this way, the display on each display section 10 to 12 used is
To set it as FF, keys 10b, 11b, and 12b may be pressed.

FIG. 4 shows a calculator 17 according to a second embodiment of the invention. The main structure is the same as that of the first embodiment, so a complete explanation will be omitted, but the point is that a key 18 is provided for totalizing all the displayed values on the display sections 10 to 16 of the calculator 9 according to the first embodiment. It is something that For example, using this calculator 17, 1+
2+3+4+5+6+7+8+9=?・・・・・・・・・
・When calculating a relatively long formula such as (4-1g), use the following calculation procedure to divide the entire formula (4-18) into formulas of appropriate length, for example, first Press the key 10a to calculate 1+2+3= in calculation section 2, and display section 1.
Display the calculated value in 0 3 Next, press the 11a key and 4
+5+6= is calculated, the calculated value is displayed on the display section 11, and then the key 12a is pressed to calculate 7+8+9==, the calculated value is displayed on the display section 12, and each display section 10 to To add up the calculated values displayed at 12, key 18 can be pressed. Then, the above (
4-18) The calculated value of the formula, that is, the sum of the calculated values displayed on the display sections 10 to 12 is displayed. FIG. 5 shows a calculator 19 according to the third embodiment of the present invention. 0 This calculator 19 is a modification of the calculator 17 according to the second embodiment,
Each of the display sections 10 to 16 has keys 10a to 10a for displaying the display iON of the display sections 10 to 16, respectively, as in the second embodiment.
162 and key io to display 't OFF'
In addition to keys 10c to 16b, selection keys 10c to 16C are provided for selecting display values of the respective display sections 10 to 16. When using the calculator 19 having such a configuration, for example, if you want to selectively total the calculated values displayed in advance on the display sections 10 to 14, the following procedure may be used. 10 and the calculated value on the display section 16, first press all keys 16a, then press selection key 10c'e.
0, and then press the + key 20 of the calculation section 2. After pressing the selection key 13c all the way, press the = key 21. The total value will be displayed.

Further, FIG. 6 shows a calculator 22 according to a fourth embodiment of the present invention.The calculator 22 according to the fourth embodiment of the present invention includes a calculation section 2, one main display section 26, and six sub-display sections 61 to 61. 66 is formed. Similarly to the third embodiment, the sub display sections 61 to 66 have keys 31a to 36a for setting the display on each of the sub display sections 61 to 66, and keys 31b to 36b1 for setting the display to OFF. Selection keys 31c to 36C are provided for selecting display values of the sub display sections 61 to 36.

For example, when using the calculator 22 having such a configuration to calculate a complex calculation formula such as the following, the following operation procedure is used. That is, first, press all keys 31a, then perform 7 calculations of 6' in calculation section 2 to display all the calculated values on secondary display section 61, then press key 32ak to enter 3! calculation? By performing this in the calculation section 2, the calculated value is displayed on the subordinate display section 62. Furthermore, by pressing the key 33ak and calculating 3'-3 in the calculating section 2, the calculated value is displayed on the sub display section 36. Using the calculated values of each part,
When calculating the calculated value of equation (637), the following operation procedure is used.

Step 5 Step 6 Press the →÷ key. →Press the selection key 33ck.O Through these operating steps, the calculated value of equation (6-37) will be displayed on the main display 26.
0 can be displayed in the same manner as a conventional calculator by using the main display part 26 and calculation part 2 when the sub display parts 61 to 36 are not used. - In the fourth embodiment, only the case where there are seven display units in total has been described, but the number of display units is not limited to this, and may be reduced or increased as necessary.

As explained above, the configuration of the present invention is an electronic desk calculator characterized by having a plurality of display sections that can selectively display and record and display calculated values calculated by a calculation section. By doing so, you can display the results of calculations performed multiple times on each display separately, as well as the results of calculations performed by disassembling all complex calculation formulas, and further display these results separately. It has the excellent effect of allowing you to compare and examine each calculated value while visually checking the calculated values displayed on each display, and is ideal for relatively small calculators because it has a large capacity and is convenient to carry. It is something.

[Brief explanation of the drawing]

FIG. 1 is a perspective explanatory diagram showing a conventional calculator, FIG. 2 is a perspective explanatory diagram showing a conventional printer electronic 4, and FIG. 3 is a perspective explanatory diagram showing a calculator according to a first embodiment of the present invention. Figure 4 shows
FIG. 5 is a perspective explanatory view showing a calculator according to the third embodiment of the invention, and FIG. 6 is a fourth practical example of the invention. It is a perspective explanatory view showing a calculator. 2... Calculation section 4.10-16.31-36... Display section

Claims (1)

[Claims] An electronic desktop calculator characterized by being provided with a plurality of display sections that can selectively display calculated values calculated by a calculation section and that can record and display them.