Casio fx-570ES PLUS User Manual

Also see for fx-570ES PLUS: User guide User guide

E-13Variables (A, B, C, D, E, F, X, Y)Your calculator has eight preset variables named A, B, C, D, E, F, X, and Y. Youcan assign values to variables and also use the variables in calculations.To assign the result of 3 + 5 to variable A3 + 5 1t(STO) y(A) 8To multiply the contents of variable A by 10(Continuing) Sy(A) * 10 = 80To recall the contents of variable A (Continuing) ty(A) 8To clear the contents of variable A 0 1t(STO) y(A) 0Independent Memory (M)You can add calculation results to or subtract results from independentmemory. The “M” appears on the display when there is any value other thanzero stored in independent memory.To clear the contents of M 0 1t(STO) l(M) 0To add the result of 10 × 5 to M (Continuing) 10 * 5 l 50To subtract the result of 10 + 5 from M(Continuing) 10 + 5 1l(M–) 15To recall the contents of M (Continuing) tl(M) 35Note: Variable M is used for independent memory.Clearing the Contents of All MemoriesAns memory, independent memory, and variable contents are retained evenif you press A, change the calculation mode, or turn off the calculator.Perform the following procedure when you want to clear the contents ofall memories.!9(CLR) 2(Memory)=(Yes)Function CalculationsFor actual operations using each function, see the “Examples” sectionfollowing the list below.ππ : π is displayed as 3.141592654, but π = 3.14159265358980 is used forinternal calculations.e : e is displayed as 2.718281828, but e = 2.71828182845904 is used forinternal calculations.sin, cos, tan, sin −1, cos −1, tan −1 : Trigonometric functions. Specify the angleunit before performing calculations. See 1.sinh, cosh, tanh, sinh −1, cosh −1 , tanh −1 : Hyperbolic functions. Input afunction from the menu that appears when you press w. The angle unitsetting does not affect calculations. See 2.