Scientific Calculator
A full scientific calculator with trig, log, ln, exponents, square root, Ο, e, and factorial. Respects order of operations (PEMDAS) on any expression.
Order of operations follows PEMDAS: parentheses, then powers (right-to-left), then Γ Γ· %, then + β. Use the DEG/RAD toggle to set how trig functions interpret angles. The result updates as you type.
Frequently Asked Questions
Does this scientific calculator follow order of operations?
Yes. It evaluates expressions using standard order of operations (PEMDAS): parentheses first, then exponents (right-to-left), then multiplication, division, and modulo left-to-right, and finally addition and subtraction. So 2 + 3 Γ 4 returns 14, not 20.
How do I use sin, cos, and tan?
Type the function followed by its argument in parentheses, like sin(30). Use the DEG/RAD toggle to choose whether angles are in degrees or radians. In degree mode, sin(30) = 0.5; switch to radians for calculus-style input.
What is the difference between log and ln?
On this calculator, log is the common logarithm (base 10), so log(1000) = 3. ln is the natural logarithm (base e), so ln(e) = 1. For a logarithm in any other base, use our dedicated logarithm calculator.
How do I calculate powers and roots?
Use the ^ key for powers, so 2^10 = 1024. Exponents are right-associative, meaning 2^3^2 evaluates as 2^(3^2) = 512. For square roots use sqrt( ), and for other roots use a fractional exponent like 27^(1/3) = 3.
How does the factorial button work?
The x! button appends a factorial operator after a value. For example, 5! = 120. Factorial is only defined for non-negative whole numbers; entering a decimal or negative value before ! will show an error.
What do Ο and e do?
The Ο key inserts the constant pi (β3.14159) and the e key inserts Euler's number (β2.71828). You can mix them into any expression, for example 2 Γ pi Γ 5 to find the circumference of a circle of radius 5.