EC-2035 Fraction Calculator (650-0529) Key Functions Faxback Doc. # 33488 Key Functions [FIX] Decimal Place Selector Use this key to set the number of decimal places within a range of 0 to 7. [RND] Rounding Press this key to make the number of decimal places used for calculation matches the displayed number of decimal places. [X<->Y] Press this key to switch the currently displayed value with the last displayed value. [X<->M] Press this key to switch the currently displayed value with the value stored in memory. [RAN#] Random Number Generator Press this key to digitally produce a random number. Random numbers can be used in sample survey. (0< random number <1) [1/x] Reciprocal Number Press this key to produce the reciprocal of the displayed value. [SYMBOL] Square Root Press this key to calculate the square root of the displayed value. [X^2] Square Press this key to square the displayed value. [ ( ], [ ) ] Parentheses Use these keys to input parentheses. [X^y] Power Use this key when you want to raise the displayed value to a specific power [10^x] Power of 10 Use this key to raise 10 to the power of the displayed value. [a] Integer Input Use this key to input the integer part of a fraction. You can input up to four digits for the integer. Example: To input the fraction 1-1/2. 1[a]1[b/c]2 [b/c] Numerator Input Use this key to input the numerator of a fraction. You can input up to four digits for the numerator and the denominator of a fraction. Example: To input the fraction 1/2. 1 [b/c] 2 [F<->D] Fraction <-> Decimal Press this key to change a fraction value into a decimal value, or to change a decimal value into a fraction value. [ a b/c ] Mixed Fraction <-> [<->d/c] Improper Fraction Press this key to change a mixed fraction into an improper fraction, or to change an improper fraction into a mixed fraction. [SIMP] Fraction Simplification Press this key to simplify a displayed fraction. [%] Percent You can use this key to calculate money you save, and to perform any other type of percent calculation. [->] Right Shift Press this key to shift the displayed value to the Right, deleting the far right value. [MC] Memory Clear Clears independent memory. [MR] Memory Recall When you press this key, the number stored in memory appears on the display [M-] Memory Minus When you press this key, the number on the display is subtracted from memory. You can also press the [M-] key in place of [=]. When you do, the calculation is performed and the result is subtracted from memory automatically. [M+] Memory Plus When you press this key, the number on the display is added to memory. You can also press the [M+] key in place of [=]. When you do, the calculation is performed and the result is added to memory automatically. [/R] Division With Remainder Press this key when you want to perform a division operation and display a whole number remainder (rather than decimal). [C] Clear Press this key to clear a value that you have just input. [On] [AC] All Clear/Power On Press this key to clear the calculator before starting a new calculation. Pressing this key also switches the calculator on. [PI SYMBOL] Press this key to input the approximate value of PI. The value used internally is 3.1415926536. [+/-] Sign Change The [+/-] key lets you switch the sign of a value between positive (+) and negative (-). [=] Result Press this key to display the result of a calculation. (BR/EB 6/6/96)