Scientific Calculator
Advanced scientific calculator with trig, log, and more.
How to Use Scientific Calculator
- 1Toggle DEG/RAD for trigonometric mode
- 2Enter a number and select a function
- 3Use parentheses for complex expressions
- 4Press = to compute
About Scientific Calculator
Our Scientific Calculator provides all the functions you need for advanced mathematics: trigonometry (sin, cos, tan and their inverses), logarithms (log, ln), exponentials (e^x), square roots, powers, and factorials. Switch between degree and radian modes for trigonometric calculations.
The calculator supports parentheses for complex nested expressions and includes built-in constants pi and e. All six trigonometric functions and their inverses are available, making it suitable for physics, engineering, and math coursework at any level.
All computation runs locally in your browser with no data sent to any server. The interface is fully responsive and works on desktop and mobile devices, so you can solve complex expressions anywhere without installing any software.
Key Features of Scientific Calculator
- Trigonometric functions: sin, cos, tan and their inverses
- Logarithms: log base 10 (log) and natural logarithm (ln)
- Exponential functions: e^x and 10^x
- Square root, cube root, and power operations (x^y)
- Factorial calculation (n!) for non-negative integers
- Toggle between degrees (DEG) and radians (RAD) modes
- Pi (pi) and Euler number (e) constants built in
- Parentheses support for complex nested expressions
Examples
Trigonometry in degrees
Calculate the sine of a 30-degree angle in DEG mode.
Input
sin(30) in DEG mode
Output
0.5
Natural logarithm
Compute the natural log of Euler's number e.
Input
ln(e)
Output
1
Common Use Cases
- Solving trigonometry problems for physics and engineering courses
- Computing logarithms for chemistry and biology calculations
- Working with exponential growth and decay formulas
- Calculating factorial values for combinatorics and probability
- Evaluating complex expressions with nested parentheses
- Converting between degrees and radians for math coursework
Troubleshooting
Trig function gives unexpected result
Solution
Check whether the calculator is in DEG or RAD mode. sin(90) in DEG mode = 1, but sin(90) in RAD mode is approximately 0.894.
log or ln of a negative number returns an error
Solution
Logarithms are only defined for positive numbers. Ensure your input is greater than zero before applying log or ln.
Factorial of a decimal number returns an error
Solution
The factorial function (n!) is only defined for non-negative integers. Round your number to the nearest integer before using n!.
Frequently Asked Questions
Which trig mode should I use?
Use DEG for everyday angles measured in degrees (0 to 360). Use RAD for physics, calculus, and engineering problems where angles are expressed in radians (0 to 2pi). Most textbook problems specify which to use.
Can I calculate factorials?
Yes. Use the n! button to compute factorials for non-negative integers. Factorials grow extremely fast, so values above about 170 will exceed JavaScript's maximum number and return Infinity.
How do I compute e raised to a power?
Press the e^x button after entering the exponent. For example, enter 2 then press e^x to get e^2 which is approximately 7.389.
What is the difference between log and ln?
log (or log10) computes the base-10 logarithm. ln computes the natural logarithm using base e (approximately 2.71828). ln is commonly used in calculus and science; log10 is used in decibels and pH calculations.
Can I use pi in calculations?
Yes. Press the pi button to insert the value of pi (3.14159265358979...) into your expression. You can combine it with other operations, such as 2 * pi to get the circumference ratio.
How do parentheses work?
Use ( and ) buttons to group parts of your expression. The calculator evaluates the innermost parentheses first, following standard mathematical order of operations.
Does it support inverse trig functions?
Yes. arcsin (sin inverse), arccos, and arctan are available as separate buttons. These return the angle whose sine, cosine, or tangent equals the input value.
Is my data sent to a server?
No. All calculations are performed locally in your browser using JavaScript. Nothing you type is transmitted to any server or stored beyond your session.