EasyCalcFor.meEasyCalcFor.me

Scientific Calculator

Trigonometry, logarithms, exponents

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Functions Reference

sin / cos / tanTrigonometric functions
logBase-10 logarithm
lnNatural logarithm (base e)
√Square root
x²Square a number
xⁿRaise to any power
πPi ≈ 3.14159265…
eEuler's number ≈ 2.71828…

How to Use

  1. Toggle DEG or RAD for angle mode (affects sin/cos/tan)
  2. Use the number pad to enter values
  3. Scientific buttons (top row) insert function calls
  4. Press CE to delete the last character, C to clear all

FAQ

What is the difference between DEG and RAD mode?

In DEG mode, angles are in degrees (0–360). In RAD mode, angles use radians (0–2π). For example, sin(90°) = sin(π/2) = 1. Use DEG for everyday geometry and RAD for calculus.

What is the difference between log and ln?

log (log₁₀) is the base-10 logarithm. ln is the natural logarithm with base e ≈ 2.718. For example, log(100) = 2, and ln(e) = 1.