Beyond standard trig
Use inverse and hyperbolic functions, secant, cosecant, cotangent, arbitrary-base logarithms, nth roots, factorials, combinations and permutations.
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Mathematics · Free
Advanced Scientific Calculator
A keyboard-first calculator for serious maths: DEG/RAD trigonometry, inverse and hyperbolic functions, logs, roots, combinatorics, complex numbers, calculus, equations, and vectors.
History stays in this browser
Memory 0
1
Scientific functions
HYP changes the trig rowNumber pad
A-level maths helpers
Check the working beyond one expression.
Focused solvers expose the useful intermediate values, not only a final answer.
Solve ax² + bx + c = 0
Find both roots (including complex roots), the discriminant, axis of symmetry and turning point.
x₁
3
x₂
2
Discriminant Δ
1
Axis of symmetry
x = 2.5
Vertex / turning point
(2.5, -0.25)
How it works
Calculate quickly, then inspect the mathematics.
The main expression engine handles everyday scientific work, while focused helpers expose the intermediate details that matter in A-level questions.
- 01
Write or tap an expression
Use the scientific keypad or type naturally with functions such as sin(30), log(1000), nCr(10, 3), sqrt(2), and complex values.
- 02
Set the angle mode
Choose DEG for degree-based questions or RAD for radians. The setting also carries into calculus and vector-angle helpers.
- 03
Check the wider problem
Open an A-level helper to inspect quadratic roots and discriminants, solve two equations, estimate calculus results, or analyse vectors.
Scientific depth
The functions missing from ordinary calculators.
A-level problem helpers
Solve quadratics and simultaneous equations, estimate derivatives and definite integrals, and calculate 3D vector products, magnitudes and angles.
Keyboard-first workflow
Calculate with Enter, insert common functions with Alt shortcuts, keep an Ans value, store memory, and reopen locally saved history.
Scientific calculator questions
Understand the notation and modes.
Can I use degrees and radians?+
Yes. Choose DEG or RAD above the display. Direct trig functions interpret inputs in that mode, while inverse trig functions return angles in the selected mode.
How do I calculate inverse sine, cosine, or tangent?+
Use asin(x), acos(x), or atan(x), or tap the sin⁻¹, cos⁻¹, and tan⁻¹ buttons. For example, asin(0.5) returns 30 in DEG mode and approximately 0.5236 in RAD mode.
Does the calculator support complex numbers?+
Yes. Use i as the imaginary unit. Results such as sqrt(-1), powers of complex values, and quadratics with a negative discriminant can be displayed using complex numbers.
How do I use logarithms with a custom base?+
Use log(value, base). For example, log(8, 2) returns 3. Use ln(x) for the natural logarithm and log(x) or log10(x) for base 10.
Can it calculate combinations and permutations?+
Yes. Use nCr(n, r) for combinations and nPr(n, r) for permutations. The equivalent combinations(n, r) and permutations(n, r) functions are also supported.
Are the derivative and integral exact?+
The calculus lab provides numerical estimates: a five-point central method for derivatives and Simpson’s rule for definite integrals. It is designed to check working, not replace exact symbolic proof.
What is saved in calculation history?+
The latest 30 expressions and answers are stored only in local browser storage on your device. You can clear the history at any time.
Which keyboard shortcuts are available?+
Press Enter to calculate and Escape to clear the expression. Alt+S, Alt+C, and Alt+T insert trig functions; Alt+R inserts a square root; Ctrl or Command+M stores the current numerical answer.
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