Skip to content

Algebra · free · no sign-up

Scientific Calculator

A full scientific calculator with trigonometry, logarithms, powers, roots, constants and degree/radian modes.

How it works Report a problem

Scientific CalculatorScientific

Universal Computation Intelligence

0

Neural Tape

About the Scientific Calculator

A full scientific calculator with trigonometry, logarithms, powers, roots, constants and degree/radian modes.

How to use the Scientific Calculator

  1. Choose DEG or RAD for trigonometric functions.
  2. Use the number pad and function keys such as sin, cos, tan, ln, log, √ and xʸ. Press 2nd for inverse functions and use π and e for constants.
  3. Press = for the result, DEL to delete a character and AC to clear.

When to use the Scientific Calculator

  • Working with trigonometry, logarithms and powers in maths or science.
  • Checking homework and exam practice answers.
  • Quick calculations with brackets and constants such as π and e.

Common mistakes to avoid

  • Leaving the calculator in the wrong angle mode (degrees or radians).
  • Missing brackets, so that the order of operations gives a different result.

Tips

  • Check the DEG/RAD setting before using trig functions. It is the most common cause of wrong answers.
  • Use brackets to make the order of operations explicit.

Frequently asked questions

What is the difference between ln and log?
ln is the natural logarithm (base e). log is the base-10 logarithm.
When should I use radians?
In calculus and most higher-level maths. Degrees are common in everyday geometry.
What is the order of operations?
Brackets, then exponents and roots, then multiplication and division, then addition and subtraction.
What is the difference between log and ln?
log is the base-10 logarithm. ln is the natural logarithm with base e ≈ 2.718.