Calculator
History
Your calculations will appear here.
A free scientific calculator in your browser: trigonometry, logarithms, powers, roots, constants and parentheses, with a calculation history.
Your calculations will appear here.
Click the buttons or type directly into the expression box: sin, cos, tan and their inverses, log base 10, natural log, square and cube roots, powers with ^, parentheses, the constants pi and e, and ANS to reuse your last answer. Switch between degrees and radians for trigonometry. Every result is added to a history list so you can review your work.
Instead of running your input as raw code, the calculator whitelists allowed characters and maps function names to real math routines before evaluating. Unknown text is rejected, so a typo gives you an error message rather than a surprise.