Question 1

What is a scientific calculator?

Accepted Answer

A scientific calculator is a calculator that can perform advanced mathematical functions beyond basic arithmetic, including trigonometric functions (sin, cos, tan), logarithms (log, ln), square roots, exponents, factorials, and more. It is essential for science, engineering, and advanced mathematics.

Question 2

Do the trigonometric functions use degrees or radians?

Accepted Answer

This calculator uses radians for trigonometric functions by default, as this is the standard in most scientific and programming contexts. To convert degrees to radians, multiply by pi/180. For example, sin(90 degrees) = sin(pi/2 radians) = 1.

Question 3

What is the difference between log and ln?

Accepted Answer

log (common logarithm) uses base 10, while ln (natural logarithm) uses base e (approximately 2.71828). For example, log(100) = 2 because 10^2 = 100, and ln(e) = 1 because e^1 = e. Both are widely used in science and engineering.

Scientific Calculator