CalcGuru

Engineering calculator

Advanced calculator for complex mathematical calculations

Calculator

Perform complex mathematical calculations

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The calculator supports trigonometric functions in degrees

❓ How the calculator works

The engineering calculator performs arithmetic and scientific calculations: addition, multiplication, powers, roots, trigonometry and logarithms. Results appear on the display; intermediate values can be stored in memory (M+, M−, MR, MC).

Trigonometric functions (sin, cos, tan) work in degrees, not radians.

🧮 Available functions

📐 Trigonometry

sin, cos, tan — argument in degrees

sin(90°) = 1, cos(0°) = 1

🔢 Logarithms and powers

log — base 10 (log₁₀)

ln — natural (loge)

x^y — exponentiation

🔢 Roots and fractions

√ — square root

x² — square of a number

1/x — reciprocal

🔣 Constants

π ≈ 3.14159

e ≈ 2.71828

💡 Example calculations

  • sin(90°) = 1
  • log(100) = 2 (common logarithm)
  • √(9) = 3
  • 2 x^y 3 → 2³ = 8

For binary operations (+, −, ×, ÷, x^y): enter the first number, press the operation, enter the second and press «=».

✅ Tips

  • «C» clears the current input and operation; «⌫» deletes the last character.
  • Memory (M+, M−) adds or subtracts the current value; MR recalls it, MC clears memory.
  • For trigonometry, make sure the angle is in degrees — radians will give wrong results.
  • sin, cos, tan, log, ln, √, x² and 1/x apply to the number on screen immediately, without pressing «=».