JPS6331460U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an overall circuit diagram of an embodiment of this invention, FIGS. 2 and 3 are flowcharts showing arithmetic processing between trigonometric functions and inverse trigonometric functions, and FIGS. B is a diagram showing the operator stack that changes during the operation in the flowchart of FIG. 2, the contents of the current operator register and the operation register, and FIG. 5 is a diagram similar to FIG. Figure 6 shows the operator stack, the contents contained in the operator register, and the operation register in the flowchart of the operation. It is. 11...Control unit, 12...Key input unit, 13...
...RAM, 14...Operator stack, 15...Current operator register, 16...X register, 17...
...Y register, 20...Arithmetic unit.

Claims (1)

[Scope of Claim for Utility Model Registration] In a small electronic calculator that executes calculations according to the input format, an input means for inputting a functional operator and a functional operator input by the input means are inverse functions. A small electronic calculator characterized by comprising a discriminating means for discriminating whether the two functions are continuous, and a control means for omitting calculation of the two consecutive functions in response to the discriminating operation of the discriminating means.