Sharp EL733A EL-733A Operation Manual - Page 9

Memory Registers In NORMAL Mode The EL-733A has five memory registers available for use in NORMAL Mode. These memory registers are called M, CST, SEL, MAR, and MU. Another 25 registers are available for use in FIN mode, but those registers are described starting on page 32. Picture the NORMAL mode registers as boxes that can each hold one number: MU MAR SEL CST M As long as you stay in NORMAL mode, numbers stored in any of these' registers are preserved, even when the calculator is turned off. The registers CST, SEL, MAR, and MU are described starting on page 25. The M register is described below. THE M REGISTER The three keys that help you use the M register are the 01, 1- 1 , and 1- 1 keys. The M register can be used to help get through certain arithmetic problems in NORMAL mode, to temporarily store results, or, because the number in the M register is preserved when the calculator is turned off, you can store an important number there for an extended period of time. The M register is active in both NORMAL and FIN modes. It is not active in STAT mode. 14 STORING A NUMBER IN THE M REGISTER To store a number in the M register, simply press Irkt . The new number will replace any number that was stored there. When some number other than zero is stored in the M register, an "M" indicator comes on in the upper left corner of the display. Example: Store the number 75.2989 in the M register. Solution: 75.2989 The following diagram shows you what happens when you press Ix•M 75.2989 DISPLAY (x) M register Press 75.2989 DISPLAY (x) 75.2989 M register Notice that the "M" indicator is now on in the upper left corner of the display. This indicator is on whenever a number other than zero is stored in the M register. 15