Scientific Calculator
Expression calculator
Memory: M+ / M− add or subtract the current value; MR recalls memory into the expression.
Reaching for a physical scientific calculator mid-homework means hunting degrees-vs-radians switches and retyping long decimals. This browser keypad evaluates trig, logs, powers, roots, and factorial expressions with high-precision math—same muscle memory as a handheld, minus the dead batteries.
How to Use This Scientific Calculator
- Build an expression. Tap keypad buttons or type on the keyboard. Parentheses control order of operations—nest them when numerators and denominators mix trig with powers.
- Choose DEG or RAD. Set angle mode before trig. In degrees, sin(30) evaluates to 0.5; in radians the same button expects radian measure.
- Press = or Enter. The result strip updates live. Use Ans to pull the last successful result back into a follow-up expression without retyping.
- Use memory when tallying. M+ and M− accumulate a running total; MR drops that stored value into the expression field. For geometry-heavy work, pair results with the Triangle Calculator or Pythagorean Theorem Calculator.
Scientific Calculator Formulas and Practical Applications
The keypad maps to standard mathjs functions—what changes is angle mode for trig and how results format at extreme magnitudes.
Trigonometry
sin(θ), cos(θ), tan(θ) and inverses sin⁻¹, cos⁻¹, tan⁻¹
Surveyors and physics labs live in degrees; calculus exercises expect radians. Toggle before you hit equals—switching mode re-evaluates a non-empty expression so you catch unit mistakes early.
Logarithms and exponentials
ln(x) natural log · log(x) base 10 · e^x · 10^x
pH, decibel, and half-life problems hop between log bases. The ln and log buttons match textbook notation—ln is natural, log is base ten on this keypad.
Powers, roots, and factorial
x^y · √x · ∛x · n!
Powers bind before addition on the keypad layout—use parentheses when you mean (a+b)² versus a+b². Factorial accepts non-negative integers; combinatorics homework often chains n! with the Permutation Combination Calculator.
Constants and display
π and e insert high-precision constants. Results format to readable fixed decimals when short; very long values switch to exponential notation (about 14 significant digits) so the strip does not overflow.
Frequently Asked Questions
How do I switch between degrees and radians?
Use the DEG or RAD radios above the pad. All trig and inverse-trig keys respect the active mode.
What does Ans do?
Inserts the last good result into the expression—ideal for multi-step lab calculations without copy-paste errors.
Which functions does the scientific calculator support?
sin/cos/tan and inverses, ln and log₁₀, √ and ∛, x^y/x²/x³/e^x/10^x, factorial, 1/x, π, e, arithmetic, and memory keys.
How do memory keys work?
M+ adds the current evaluation to memory, M− subtracts, MR recalls into the expression. Memory persists until you overwrite it in the session.
Why does a very large result show in exponential form?
Long outputs auto-switch to scientific notation for readability. Need full integer precision without truncation? Use the Big Number Calculator or browse math calculators.