Scientific Calculator

Calculator Overview

This scientific calculator offers a wide range of mathematical functions for basic arithmetic, advanced scientific calculations, trigonometry, logarithms, and more. It also includes a calculation history feature that allows you to review and reuse previous results.

Pro Tip

Click the clock icon in the top function row to toggle the calculation history panel. You can click on any previous calculation to reuse its result.

Important Note

The calculator operates in Radian mode by default. Click the DEG button to switch to Degree mode for angle calculations.

Basic Functions

Button	Function	Example
0-9	Number input	Press 5 to input the number 5
.	Decimal point	Press 5 then . then 2 to input 5.2
+	Addition	5 + 3 = 8
−	Subtraction	9 − 4 = 5
×	Multiplication	6 × 7 = 42
÷	Division	20 ÷ 5 = 4
=	Calculate result	After entering an expression, press = to calculate
C	Clear all	Press C to clear the current calculation
⌫	Backspace	Press ⌫ to delete the last digit entered
±	Change sign	Enter 5 then press ± to get -5

Example: Basic Calculation

1. Press 2 3 (to enter 23)
2. Press + (addition)
3. Press 4 5 (to enter 45)
4. Press = (equals)

Result: 68

Scientific Functions

Powers and Roots

Button	Function	Example
x²	Square	5² = 25
x³	Cube	3³ = 27
x^y	Power	2^4 = 16
√x	Square root	√16 = 4
∛x	Cube root	∛27 = 3
10^x	10 raised to power x	10^3 = 1000
e^x	e raised to power x	e^2 ≈ 7.389

Example: Calculate a Power

1. Press 2 (to enter 2)
2. Press x^y (power function)
3. Press 5 (to enter 5)
4. Press = (equals)

Result: 32 (2 raised to the power of 5)

Logarithmic Functions

Button	Function	Example
log	Logarithm base 10	log(100) = 2
ln	Natural logarithm (base e)	ln(e) = 1
log₂	Logarithm base 2	log₂(8) = 3

Trigonometric Functions

Button	Function	Example (in Radian mode)
sin	Sine	sin(π/2) = 1
cos	Cosine	cos(π) = -1
tan	Tangent	tan(π/4) = 1
sin⁻¹	Inverse sine (arcsine)	sin⁻¹(1) = π/2
cos⁻¹	Inverse cosine (arccos)	cos⁻¹(0) = π/2
tan⁻¹	Inverse tangent (arctan)	tan⁻¹(1) = π/4

Example: Trigonometric Calculation

1. Press RAD to ensure you're in Radian mode
2. Press π (to enter π)
3. Press ÷ (division)
4. Press 2 (to enter 2)
5. Press = (to calculate π/2)
6. Press sin (sine function)

Result: 1 (sine of π/2 radians)

Angle Mode Tip

Toggle between RAD (radians) and DEG (degrees) modes depending on your angle measurement needs. In DEG mode, sin(90) = 1, while in RAD mode, sin(π/2) = 1.

Other Scientific Functions

Button	Function	Example
x!	Factorial	5! = 120
π	Pi constant	π ≈ 3.14159...
e	Euler's number	e ≈ 2.71828...
\|x\|	Absolute value	\|-5\| = 5
1/x	Reciprocal	1/4 = 0.25
%	Percent	50% = 0.5
mod	Modulo (remainder)	7 mod 3 = 1
rand	Random number (0-1)	rand → 0.7231... (random)

Memory and History Functions

Memory Functions

Button	Function	Description
MS	Memory Store	Stores the current displayed value in memory
MR	Memory Recall	Recalls the value stored in memory

Example: Using Memory Functions

1. Calculate 25 × 4 = 100
2. Press MS to store 100 in memory
3. Perform another calculation: 50 + 30 = 80
4. Press MR to recall 100 from memory
5. Press + and then 5
6. Press = to calculate 100 + 5

Result: 105

History Functions

Button	Function	Description
	Toggle History	Shows or hides the calculation history panel
Clear History	Clear History	Erases all saved calculation history
History Item	Reuse Result	Click on any history item to use its result in a new calculation

Example: Using History Functions

1. Perform several calculations
2. Click the button to open the history panel
3. Click on any previous calculation result to use it in a new calculation
4. Click "Clear History" to remove all history items if needed

Keyboard Shortcuts

Key	Function
0-9	Number input
.	Decimal point
+ - * /	Basic operations
Enter or =	Calculate result
Backspace	Delete last digit
Escape or Delete	Clear all
p	Input π (pi)
e	Input e (Euler's number)
%	Percent
^	Power function

Keyboard Tip

Using keyboard shortcuts can significantly speed up your calculations. Try using the number keys and operators without reaching for the mouse!

Common Calculation Examples

Compound Interest

Formula: A = P(1 + r)^t

Example: $1000 at 5% for 3 years
1. Enter 1000 (principal)
2. Press ×
3. Enter 1.05 (1 + rate)
4. Press x^y
5. Enter 3 (time)
6. Press =

Result: $1157.63

Pythagorean Theorem

Formula: c = √(a² + b²)

Example: Find hypotenuse when a=3, b=4
1. Enter 3
2. Press x²
3. Press +
4. Enter 4
5. Press x²
6. Press = (to get 25)
7. Press √x

Result: 5

Area of a Circle

Formula: A = πr²

Example: Find area when radius=7
1. Press π (to input π)
2. Press ×
3. Enter 7
4. Press x²
5. Press =

Result: 153.94

Logarithmic Problem

Example: Solve 10^x = 1000
1. Enter 1000
2. Press log (to find log₁₀(1000))
3. Press =

Result: 3 (meaning x = 3)

Troubleshooting

Issue	Solution
Calculator displays "Error"	You may have attempted an invalid operation (like division by zero or square root of a negative number). Press C to clear and try again.
Trigonometric functions giving unexpected results	Check if you're in the correct angle mode (RAD or DEG) for your calculation.
History panel not showing	Click the clock icon in the function row to toggle the history panel visibility.
Memory recall showing zero	You may not have stored a value yet. Use MS to store a value before using MR.
Calculator showing scientific notation	For very large or small numbers, the calculator automatically switches to scientific notation for better readability.

Scientific Calculator

Calculation History