Casio FX-55 PLUS User Manual

Contents

E-9Percent CalculationsInputting a value and pressing & causes the input value to become apercent.150 × 20% = 30 150 * 20 &= 30Calculate what percentage of 880 is 660. (75%)660 / 880 &= 75Increase 2500 by 15%. (2875)2500 + 2500 * 15 &= 2875Discount 3500 by 25%. (2625)3500 - 3500 * 25 &= 2625Percent ConversionCalculation results can be converted to a percent. While a calculationresult is displayed, press !&('%). Percent display can be up to 10digits long. Pressing !&('%) again returns the calculation result to itsoriginal display format.1 + 2 = 3 = 300% 1 + 2 =!&('%) 300%!&('%) 31 ÷ 3 = 0.33 = 33.33% (Fix 2)sd(Fix)c 1 / 3 =!&('%) 33.33%45 + 23 = 146.6666667%4 ' 5 e+ 2 ' 3 =!&('%) 146.6666667%'2 = 141.4213562% ! 2 =!&('%) 141.4213562%1°2´3˝ = 103.4166667%1 e 2 e 3 e=!&('%) 103.4166667%When the number of display digits is specified by Fix, the value is convertedto a percent and then adjusted to the specified number of digits. The numberof display digits setting is not applied to the value stored in Ans memory.When MathO is selected as the display format and the calculation result isa fraction, root ('), or pi (π), the result is converted to a decimal fractionand then to a percent. Pressing !&('%) again displays the decimalfraction value.When the calculation result is a sexagesimal value (degrees, minutes,seconds), it is converted to a decimal value and then to a percent.Percent conversion cannot be performed on the result of a remaindercalculation (÷R).Degree, Minute, Second (Sexagesimal) CalculationsPerforming an addition or subtraction operation between sexagesimal values,or a multiplication or division operation between a sexagesimal value and adecimal value will cause the result to be displayed as a sexagesimal value.You also can convert between sexagesimal and decimal. The following••••