Scientific Calculator
A full scientific calculator with trig, logs, powers and constants.
History
Your calculations appear here. Tap any result to reuse it. You can also type with your keyboard — including ( ), ^ and Enter to evaluate.
About the Scientific Calculator
A scientific calculator goes well beyond the four basic operations, handling the functions you need for algebra, trigonometry, statistics and science homework. This one evaluates a full expression at once — type something like “2×sin(30)+√(16)” and it parses the whole thing using the correct order of operations, so you don't have to break the calculation into steps.
It supports parentheses, powers and roots (including the nth root), factorials, percentages and modulo, the constants π and e, and a full set of functions: sine, cosine and tangent with their inverses, the hyperbolic functions (sinh, cosh, tanh) via the hyp key, natural and base-10 logarithms, exponentials, reciprocal (1/x), absolute value, and permutations and combinations (nPr and nCr). Trigonometry works in either degrees or radians — switch the angle mode before you calculate. Results appear live as you type, and pressing equals stores the calculation in your history so you can revisit or reuse it.
You can drive everything from your keyboard as well as the on-screen keys, and the calculator understands implicit multiplication, so “2π” and “3(4+1)” work exactly as you'd write them by hand.
Frequently asked questions
How do I switch between degrees and radians?
Use the DEG/RAD toggle above the keypad. It controls how trigonometric functions interpret angles: in DEG mode sin(30) is 0.5, while in RAD mode the same input is treated as 30 radians. Set the mode before calculating.
What do the INV and hyp keys do?
INV switches the trig and log keys to their inverse functions — sin becomes sin⁻¹ (arcsine), ln becomes eˣ, log becomes 10ˣ and √ becomes x². The hyp key switches sin, cos and tan to their hyperbolic forms (sinh, cosh, tanh), and combining hyp with INV gives the inverse hyperbolics (asinh, acosh, atanh). Together they pack the second and third functions onto each key without extra buttons.
How do nPr, nCr and the other extra functions work?
nPr and nCr are entered between two whole numbers — “5 nPr 2” counts ordered arrangements (20) and “5 nCr 2” counts unordered selections (10). The nth-root key (ʸ√x) takes the index first, so 3 then ʸ√x then 27 gives 3. There's also 1/x for reciprocals and mod for the remainder of a division, e.g. 17 mod 5 is 2.
Does it follow the correct order of operations?
Yes. The calculator evaluates the whole expression using standard precedence (parentheses, then powers, then multiplication and division, then addition and subtraction), so 2+3×4 returns 14, not 20. Use parentheses whenever you want to change the grouping.
Can I use my keyboard?
Absolutely. Number keys, + − * / and ^, parentheses, % and ! all work, Enter evaluates the expression, Backspace deletes and Escape clears. You can also click the on-screen keys — whichever you prefer.
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