Scientific Calculator
Trigonometry, logarithms, powers, roots, factorials and constants — in your browser.
TL;DR — Scientific Calculator: A scientific calculator extends a standard calculator with functions for advanced math: sine, cosine, tangent and inverses; natural and base-10 logarithms; powers and roots; factorials; and mathematical constants like π and e. Cal44's scientific calculator supports both degree and radian modes for trig functions.
What is the Scientific Calculator?
A scientific calculator extends a standard calculator with functions for advanced math: sine, cosine, tangent and inverses; natural and base-10 logarithms; powers and roots; factorials; and mathematical constants like π and e. Cal44's scientific calculator supports both degree and radian modes for trig functions.
How to use the Scientific Calculator
- Switch between DEG and RAD modes using the toggle.
- Use sin, cos, tan, asin, acos, atan for trigonometry.
- Use log (base 10), ln (natural log), exp, x^y, √, x! for advanced operations.
- Press π or e to insert constants.
- Press = to evaluate.
Formula
Includes: sin, cos, tan, asin, acos, atan · log, ln, exp · x², x³, x^y, √x, ∛x · n!, π, e · 1/x, ±, %
Mode affects trig: sin(30°) = 0.5 in DEG, but sin(30 rad) ≈ −0.988.
Worked example
sin(45°) × √2 = 0.7071 × 1.4142 = 1.0. log(1000) = 3. 5! = 120. e^2 ≈ 7.389.
Frequently asked questions
How do I switch between degrees and radians?
Use the DEG/RAD toggle in the calculator header. The current mode is shown at all times.
Does it support inverse trig?
Yes — asin, acos and atan return the angle whose sine, cosine or tangent equals the input.
What's the difference between log and ln?
log is base 10 (common logarithm); ln is base e ≈ 2.71828 (natural logarithm).
How do I calculate a cube root?
Use the ∛ button, or compute as x^(1/3) using x^y.
What range does the factorial support?
Factorials grow extremely fast — 21! exceeds standard 64-bit floating point precision. Treat results above 20! as approximate.