JPS6376953U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a block diagram showing the configuration of the electronic desktop calculator of the present invention, Figure 2 is a diagram showing the configuration of the liquid crystal display shown in Figure 1, Figure 3 is a diagram showing the configuration of the keyboard, and Figure 4 is a diagram showing the configuration of the keyboard. 1 is a schematic diagram showing the configuration of the register of the main part, FIG. 5 is a schematic diagram showing the configuration of the display memory, FIG. 6 is a schematic diagram showing the configuration of the data memory in FIG. 1, and FIG. Figure 8 shows an example of calculation; Figure 9 is a flowchart showing the operating state of Figure 1; Figure 10 is a diagram showing actual sales data;
Figure 1, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, Figure 17, Figure 18, Figure 19, Figure 20, Figure 21, Figure 22, Figure 23. , 24th
25 and 25 are diagrams showing the operating states of FIGS. 4, 5, and 6. DESCRIPTION OF SYMBOLS 1... Control circuit, 2... Keyboard, 3... Program memory, 4... Data memory, 5... Drive circuit, 6... Display, 16... Register, 17
...display memory.

Claims (1)

[Scope of utility model registration request] a keyboard for inputting numerical data, operator data, etc.; a calculating means for performing calculations based on the input numerical values and operator data; and a data memory for storing a plurality of sets of input numerical values, operator data, and operational results; means for storing the cumulative value of the calculation results calculated by the calculation means; display means comprising a plurality of display elements capable of simultaneously displaying the input data and the calculation results; and reading and displaying the stored data or the cumulative value in the data memory. In an electronic desktop calculator comprising a readout means for displaying a display on the means, and a control means for appropriately controlling each of the means, the control means performs four arithmetic operations when an equal key is operated after inputting a numerical formula, and displays the numerical value. Write the formula and calculation result to the data memory, perform time constant calculation processing when the equal key is operated immediately after the set number, write the numerical formula and the calculation result to the data memory, and perform the time constant calculation process when the equal key is operated immediately after the set number. An electronic desktop calculator characterized by controlling the input value to be written into a data memory by key operation.