Sharp EL-501W, EL501WBBK operation manual Initial SET UP, Scientific Calculations

Priority Levels in Calculation

This calculator performs operations according to the following priority:

1 Functions such as sin, x2, and %

2yx, x¿y

3⋅, ⎟

4+, –

5=, M+ and other calculation ending instruction

•Calculations which are given the same priority level are executed in sequence.

•If parentheses are used, parenthesized calculations have precedence over any other calculations.

•Parentheses can be continuously used up to 15 times un- less pending calculations exceed 4.

INITIAL SET UP

Mode Selection

Normal mode: ª

Used to perform arithmetic operations and function calcula- tions. BIN, OCT, HEX, CPLX and STAT are not displayed.

Binary, Octal, Decimal, or Hexadecimal system mode: @ê, @î, @íor @ì

Complex number mode: @π

Used to perform arithmetic operations with complex numbers. To clear this mode, press @π.

Statistics mode: @Æ

Used to perform statistical calculations. To clear this mode, press @Æ.

When executing mode selection, statistical data will be cleared even when reselecting the same mode.

•By pressing F or Automatic power off function, the mode is cleared and returned to the normal mode.

Selecting the Display Notation and Decimal Places

•When calculation result is displayed in the floating point system, pressing ∞displays the result in the scientific notation system.

Pressing ∞once more displays the result again in the floating point system.

•Pressing @iand any value between 0 and 9 speci- fies the number of decimal places in the calculation result. To clear the setting of decimal places, press @i

..

100000÷3=	ª100000/3=
[Floating point]		33333.33333
[TAB set to 2]	@i2	33333.33
→[Scientific notation]	∞	3.33 04
→[Floating point]	∞@i.	33333.33333

•If the value for floating point system does not fit in the following range, the calculator will display the result using

scientific notation system: 0.000000001 ≤ x ≤ 9999999999

Determination of the Angular Unit

In this calculator, the following three angular units (degrees, radians, and grads) can be specified.

DEG (°)

Press G

GRAD (g) RAD (rad)

SCIENTIFIC CALCULATIONS

•Calculate in the normal mode.

•In each example, press ªto clear the display.

Arithmetic Operations

•The closing parenthesis )just before =or ; may be omitted.

•When entering only a decimal place, it is not necessary to press 0before ..

Constant Calculations

•In the constant calculations, the addend becomes a con- stant. Subtraction and division are performed in the same manner. For multiplication, the multiplicand becomes a constant.

Functions

•Refer to the calculation examples of each function.

•For most calculations using functions, enter numerical values before pressing the function key.

Random Numbers

Apseudo-random number with three significant digits can be generated by pressing @`. Random number gen- eration is not possible when binary/octal/hexadecimal sys- tem mode is set.

Angular Unit Conversions

Each time @gare pressed, the angular unit changes in sequence.

Memory Calculations

This calculator has one independent memory (M). It is avail- able in the normal mode and binary, octal, hexadecimal system mode.

•The independent memory is indicated by the three keys:

O, R, ;.

Before starting a calculation, clear the memory by press- ing ªand O.

•A value can be added to or subtracted from an existing memory value. When subtracting a number from the memory, press ±and ;.

•The contents of the memory are retained even when the calculator is turned off. A value stored in memory will thus remain until it is changed or until the batteries run out.

Chain Calculations

This calculator allows the previous calculation result to be used in the following calculation.

The previous calculation result will not be recalled after en- tering multiple instructions.

Time, Decimal and Sexagesimal Calculations

This calculator performs decimal-to-sexagesimal conversion and sexagesimal-to-decimal conversion. In addition, the four basic arithmetic operations and memory calculations can be carried out using the sexagesimal system.

Notation for sexagesimal is as follows:

degree	123.404080		second
		minute

Note: When the calculation or conversion result is con- verted, a residual may occur.