Scientific Calculator

Full scientific calculator with trigonometry, logarithms, powers and memory functions.

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How to use this scientific calculator

Click buttons to build your expression. The display shows the full expression so you can review it before pressing =. Use DEG/RAD to switch angle units for trigonometry.

Trigonometry
sin, cos, tan and inverses
In DEG mode: sin(30) = 0.5. In RAD mode: sin(π/6) = 0.5. Switch modes using the DEG/RAD toggle.
Logarithms
log = log₁₀, ln = logₑ
log(100) = 2 because 10² = 100. ln(e) = 1. The 10^x and eˣ buttons compute antilogs.

Frequently asked questions

What is the difference between DEG and RAD mode?

DEG (degrees) and RAD (radians) are two ways to measure angles. 360° = 2π radians. Most school problems use degrees. Radians are standard in higher mathematics and physics. Use DEG for everyday trig problems and RAD when working with calculus or physics formulas.

What does the M+, MR, MC, M− do?

Memory functions let you store a value: M+ adds the current result to memory, M− subtracts it, MR recalls the stored value back to the display, and MC clears memory. This is useful for multi-step calculations.

How do I calculate sin⁻¹ (inverse sine)?

Press the sin⁻¹ button (also written arcsin). Enter the value (must be between −1 and 1) and the calculator returns the angle whose sine equals that value. For example, sin⁻¹(0.5) = 30° in DEG mode.

What does the % button do?

The % button divides the number by 100. For example, entering 15% converts it to 0.15. Combined with multiplication: 200 × 15% = 200 × 0.15 = 30.

How do I compute xʸ (x to the power y)?

Enter the base x, press the xʸ button (which inserts ^( into the expression), then type the exponent y and close the bracket. For example: 2 xʸ 10 ) = 2^(10) = 1024.