Scientific Calculator

Free online scientific calculator with trigonometric functions (sin, cos, tan), logarithms, exponents, square roots, factorials, and memory functions. Works on any device, no download needed.

Scientific Calculator
 
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Scientific Calculator Functions

This scientific calculator supports all standard operations needed for algebra, trigonometry, calculus, and statistics courses. The DEG/RAD toggle switches between degree and radian mode for trigonometric functions.

Quick Reference

FunctionDescriptionExample
sin / cos / tanTrigonometric functionssin(30°) = 0.5
sin⁻¹ / cos⁻¹ / tan⁻¹Inverse trig (arcsin, etc.)sin⁻¹(0.5) = 30°
lnNatural logarithm (base e)ln(e) = 1
logCommon logarithm (base 10)log(100) = 2
√Square root√(144) = 12
xʸPower / exponent2^10 = 1024
n!Factorial5! = 120

Frequently Asked Questions

When should I use DEG vs RAD mode?+
Use DEG (degrees) for everyday geometry and most school problems. Use RAD (radians) for calculus, physics, and engineering where angles are expressed as multiples of π. 180° = π radians.
How do I calculate e to a power?+
Press "e" to insert Euler's number (~2.71828), then press "xʸ" to raise it to any power. For example, e^2 ≈ 7.389.
How does the memory function work?+
MS stores the current display value in memory. MR recalls the stored value into the display. MC clears the memory. This is useful for multi-step calculations.