Scientific Calculator

Trig functions, logarithms, powers, roots and factorials — with a DEG/RAD switch and full keyboard input.

DEG and RAD matter

sin(30) is 0.5 in degrees and −0.988 in radians. Check the toggle before trusting a trig result — it is the most common scientific-calculator error.

Order of operations

Powers bind tighter than multiplication, which binds tighter than addition. Brackets always win — use them when in doubt.

How do I use sin⁻¹ or cos⁻¹?
This build exposes sin, cos, tan and their inverses through asin/acos/atan input; type asin(0.5) for 30° in DEG mode.
Can I use π and e?
Yes — the π and e buttons insert the constants at the cursor.