Precedence Rules
OnSciCalc evaluates operations strictly in mathematical sequence:
1. Parentheses ( ... )
2. Exponents x^y
3. Trig / Log Functions sin, ln
4. Multiply / Divide *, /
5. Add / Subtract +, -
Concepts & Reference
Exponentification2^3
Multiply a number by itself. 5^2 evaluates to 25.
Trig Functionssin(30)
Angles measured in radians or degrees. cos(pi) in RAD is -1.
💡 Toggle the 2nd button for shifted functions: sin⁻¹/cos⁻¹/tan⁻¹ (inverse trig), ∛ (cube root), x³ (cube), eˣ (exponential), 10ˣ (power of 10).
Implicit Multi.(2+3)*4
Evaluates automatically to 3 * (4+2) = 18.
Log / Natural Loglog(100)
ln stands for natural log (base e). ln(e) evaluates to 1.
Factorial (n!)4!
Multiplies all positive integers down to 1. 4! evaluates to 24.
💡 Keyboard Support: Type standard digits, operators (+, -, *, /), parentheses, or exponents (^). Hit Enter for equals, and Esc to clear. Press Shift+S/C/T for inverse trig functions.