How Does This Scientific Calculator Work?
Enter a mathematical expression using the number pad and scientific function buttons. Choose DEG or RAD for trigonometric calculations, then select Calculate to get the result.
Scientific Calculator Functions
This calculator supports basic arithmetic, parentheses, percentages, powers, square roots, reciprocals, absolute values, factorials, constants, logarithms, and trigonometric functions.
DEG vs RAD Mode
DEG mode treats angle inputs as degrees, while RAD mode treats them as radians. For example, sin(30°) equals 0.5 in DEG mode, while sin(π ÷ 6) equals 0.5 in RAD mode.
Frequently Asked Questions
How do I calculate sin, cos, and tan in degrees?
Select DEG mode, choose sin, cos, or tan, enter the angle, close the parenthesis, and calculate.
What is the difference between log and ln?
Log uses base 10, while ln uses the natural logarithm with base e. Both require a positive input.
How do I calculate a factorial online?
Enter a non-negative whole number and select x!. This calculator supports factorials up to 170!.
Does this calculator support implied multiplication?
Yes. Expressions such as 2π, 3(4+5), and 2√9 are interpreted as multiplication automatically.
Why do some decimal answers need rounding?
The calculator keeps normal JavaScript numerical precision and formats displayed results to remove unnecessary floating-point noise.
Can I use my computer keyboard?
Yes. Type numbers and common operators, use Enter to calculate, Backspace to delete, and Escape or C to clear.