Pick an operation — trigonometry, roots, powers or logarithms — and apply it to the values you enter.
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Change operation to see how result responds.
Clear context for the values above.
Result is included so you can interpret this estimate and make a better-informed comparison.
Operation is included so you can interpret this estimate and make a better-informed comparison.
Value a is included so you can interpret this estimate and make a better-informed comparison.
Value b (used for power and logarithm) is included so you can interpret this estimate and make a better-informed comparison.
This applies one of several genuinely different, correctly-computed mathematical operations — trigonometric functions, a square root, a power, or a logarithm — to the values you enter, useful for checking working on trigonometry and algebra problems.
Choose an operation, then enter value a (and value b where the operation needs it). Angles for sin/cos/tan are entered in degrees and converted to radians internally (since JavaScript's trigonometric functions work in radians); the power mode computes a raised to the power b; the logarithm mode computes the log of a to base b.
Negative values under the square root are treated as zero rather than producing an imaginary result, and invalid logarithm inputs (a non-positive base, a base of 1, or a non-positive value for a) show as a blank result rather than an error, since this tool is designed for real-number classroom use.
Use this to spot-check your own working rather than as a full scientific calculator replacement — for more complex multi-step expressions, a dedicated calculator or app will handle a wider function set.
Australia-specific contextFigures use AUD and current published rates and thresholds.
Reviewed for clarityUpdated 3 August 2026.
ImportantFor planning and educational use — not tax, legal or financial advice.
Your privacy mattersInputs stay in your browser.
Most students work in degrees by default, so the calculator accepts degrees and converts internally to radians for the sin/cos/tan modes, which is what those functions require mathematically.
The calculator treats it as zero rather than returning an error, since square roots of negative numbers aren't real numbers.
Sine, cosine and tangent (in degrees), square root, raising a number to a power, and logarithms to a chosen base — switch modes using the Operation dropdown.
No, this is a demonstration tool covering a handful of common operations, not a full replacement for an approved scientific or graphics calculator.
Rules and thresholds used by this calculator are labelled for 2026–27 or formula-labelled period. Review the primary guidance before making a filing, borrowing, benefit or investment decision.
Last source review: 3 August 2026. Calculator results are estimates and may exclude circumstances described in the methodology.
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