# Calculator | Online Math Calculator [DEG]

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 F2 sin cos tan % ^power √sqrt π eeuler log 7 8 9 ← AC 4 5 6 × ÷ 1 2 3 + - 0 . ( ) =

## A. Using Online Full Screen Scientific Calculator

Important! this math or scientific calculator uses [DEG] mode or degree mode. This used for trigonometric calculation. For example cos (90) the same as cos 90°. [DEG] mode commonly used by students all over the world.

Be careful performing trigonometric calculations with a scientific calculator. Some calculators use RAD Mode or Radian (1 RAD = 57,296°) as a standard-setting. [RAD] mode, commonly used at higher education, for example, pure physics. Click [RAD] to change Radian Mode.

### A1. Basic Button Functions

AC All Clear (AC) button clears entire calculator screen

Backspace button clears the last digit

F2 button accesses: inverse trigonometric sin-1 (arcsin), cos-1 (arccos), tan-1 (arctan), reciprocal trig ratios csc (cosecant), sec (secant), cot (cotangent), cubic root, natural logarithm (ln), factorial (!), and Euler's number (e)

### A2. Arithmetic Button Functions

= button executes calculation

`1 = 1`

+ button performs addition

`1 + 1 = 2`

- button performs subtraction

`6 - 2 = 4`

× button performs multiplication

`10 × 10 = 100`

÷ button performs division

`8 ÷ 4 = 2`

. button inputs decimal separator

`8.2 + 1.8 = 10`

( ) button inputs bracket

`1 × (3 - 1) = 1 × 2 = 2`

### A3. Power and Root Button Functions

^ button performs power

`2^3 = 2 × 2 × 2 = 8`

button performs square root

`√(144) = 12`

3 button performs cubic root

`3√(8) = 2`

### A4. Percentage and Factorial Button Functions

% button inputs percentage symbol

`45% = 0.45`

! button inputs factorial symbol

`3! = 3 × 2 × 1 = 6`

### A5. Geometry and Logarithm Button Functions

π button inputs phi constant

`π = 3.141592653589793`

e button inputs euler constant

`e = 2.718281828459`

log button performs logarithm base 10

`log(100) = 2`

ln button performs natural logarithm

`ln(e) = ln(2.718281828459) = 1`

ex button performs euler exp

`e2 = exp(2) = 7.389056098931`

### A6. Trigonometric Button Functions

#### A6.1 Basic Trigonometric Button Functions

sin button calculates sine

`sin(90) = 1`

cos button calculates cosine

```cos(90) = 0
```

tan button calculates tangent

`tan(90) = Infinity!`

#### A6.2 Inverse Trigonometric Button Functions

sin⁻¹ button calculates arcsin

`sin-1(0) = 0`

cos⁻¹ button calculates arccosin

`cos-1(0) = 90`

tan⁻¹ button calculates arctan

`tan-1(45) = 88.726969979943`

#### A6.3 Reciprocal Trig Ratio Button Functions

csc button calculates cosecant

`csc(60) = 1.154700538379`

sec button calculates secant

`sec(45) = 1.414213562373`

cot button calculates cotangent

`cot(60) = 0.57735026919`

## B. Keyboard Functions

You can use the keyboard to input number and arithmetic operator

0 1 2 3 4 5 6 7 8 9 . the key can use to input number

+ - * / key can use to input arithmetic operator

Backspace key can use to clear the last digits

Enter key can use to execute calculation (same as equal)

## C. Calculation History

View or use history for performing a new calculation, click History at the calculator screen.

## D. What is Scientific Calculator

A scientific calculator is a type of calculator that used to solve math, engineering, and science calculation. This calculator is a simple scientific calculator for your daily activity.

This online scientific calculator has been tested up to version 22. It also has advanced calculation capabilities with a simple and full screen layout, including:

Thanks for using our online math calculator! And It's Full Screen!

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