FUNWEBTOOL / UTIL
Scientific calculator
Calculate trigonometry, logarithms, powers and factorials with DEG/RAD modes and calculation history.
Expression tips
Use * for multiplication: 2*pi, not 2pi. Powers associate right to left: 2^3^2 = 512. -2^2 = -4. Percent divides a value by 100: 200*10% = 20. log is base 10; ln is natural log. Ans uses the last successful result. Factorial accepts integers 0–170.
Results use floating-point arithmetic and are displayed to about 12 significant digits.
Angles and calculation history
Choose DEG for degrees or RAD for radians. sin(30) returns 0.5 in DEG mode; sin(pi/2) returns 1 in RAD mode.
Select a history entry to restore its expression and angle mode. History stays in this page session and resets when you reload.
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