Sharp EL-5250, EL-5230 The OPTION menu, ¤Delete Lcd Contrast + Dark ¬Light, OPTION ƒCTRST ⁄M.CHK

Appendix

The OPTION menu

The OPTION menu controls display contrast, memory checking and deletion of data.

The OPTION display

Press @ o (S key) to show the OPTION menu.

•Press j to return to the mode in which you were working previously.

Contrast

Press 0 in the OPTION menu to show the LCD CONTRAST display.

•Press + to darken the display and

- to lighten it.

<OPTION> ƒCTRST ⁄M.CHK

¤DELETE

LCD CONTRAST

[+][-]

DARK® ¬LIGHT

•It is possible to lighten the display so much

that the calculator appears to be off. If the display remains blank when you press X, press @ o 0 and then press + repeatedly to darken the display.

Memory check

Press 1 in the OPTION menu to show the MEMORY CHECK display.

•The amount of free memory in bytes is shown on the first line. When the calculator is used for the first time, the following amount of memory is available.

[EL-5250] 4,096 bytes

[EL-5230] 1,280 bytes

624BYTES FREE EQTN: 15 PROG: 09

•The figures after EQTN are the numbers of equations (Filing equations functions) in the NORMAL mode.

•The figures after PROG are the numbers of programs stored in the PROG mode.

For a detailed description of how memory is used, refer to ‘Memory usage’. (See page 126.)

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