Scientific Calculator

One input, one function, one answer — trig, logs, roots, powers and factorials without opening a physical calculator or a heavier app. Built for the moment you need sin(45°) or 2^10 mid-conversation and don't want to lose your place.

Inputs

Function

Value (x)

Second value (y) — for x^y and roots

Angle unit

Result

0.70710678

Angle read in degrees

How it works

result = fn(x) — or x ʏ for power functions

1sin(45) = 0.70710678

How the scientific calculator works

Pick a function (sin, cos, ln, x², x^y, x!, and others), enter x, and for two-input functions like x^y or the y-th root, also enter y.

Trig functions respect the angle unit you select — degrees or radians — since sin(45) and sin(45°) are different numbers and mixing them up is the single most common scientific-calculator error.

Inverse trig functions (asin, acos, atan) return an angle in the unit you have selected, not a raw ratio.

Worked example: sin(45°) and 2^10

Function = sin, x = 45, angle unit = degrees: sin(45°) ≈ 0.7071.
Function = x^y, x = 2, y = 10: 2^10 = 1024.
Switching the same sin(45) calculation to radians instead of degrees gives ≈ 0.8509 — a completely different, and usually wrong, answer if degrees was intended.

Common mistakes to avoid

Leaving the angle unit on radians by habit

Most everyday trig problems (construction, navigation, homework) are posed in degrees. Radians are the default in a lot of software, so check the toggle before trusting a trig result.

Confusing x^y with y-th root of x

These are inverse operations. 8^(1/3) and 'cube root of 8' both equal 2, but entering them in the wrong function gives 512 instead.

Requesting factorial of a non-integer or large n

Factorial is defined for non-negative integers here; very large n produces a number too large to display meaningfully well before it becomes actually wrong.

Frequently asked questions

What's the difference between log10, log2 and ln?

log10 is log base 10, log2 is log base 2 (common in computing), and ln is the natural log, base e ≈ 2.71828. Pick the one matching your original problem's base.

Why did my trig answer come out completely different from my textbook?

Almost always an angle-unit mismatch. Re-check whether the problem is posed in degrees or radians and match the toggle.

How do I compute a root that isn't square or cube?

Use the 'y-th root of x' function and enter the root you need in the y field — a 5th root uses y = 5.

Is there a limit to how large a number I can raise to a power?

Very large results will show in scientific notation or become imprecise due to floating-point limits — for extreme exponents, expect the display to switch to exponential form.