Question 1

What is the difference between degrees and radians?

Accepted Answer

Degrees are the common way to measure angles — a full circle is 360°. Radians are mathematically natural: a full circle is 2π radians. Conversion: degrees = radians × 180/π.

Question 2

How do I calculate sin(90°)?

Accepted Answer

Select Degrees mode, enter 90 and press sin. Result: 1. In radians, sin(π/2) ≈ sin(1.5708) = 1.

Question 3

What are log and ln?

Accepted Answer

log is the base-10 logarithm (log₁₀), ln is the natural logarithm (base e ≈ 2.718). log(100) = 2, ln(e) = 1.

Question 4

How do I use xⁿ?

Accepted Answer

Enter the base number, press xⁿ, enter the exponent, then press =. For example: 2 xⁿ 8 = 256.

Question 5

What is Euler's number e?

Accepted Answer

e ≈ 2.71828. It is the base of the natural logarithm and appears frequently in growth and compound interest calculations.

📐 Scientific Calculator

Historia

Usein kysytyt kysymykset

Liittyvät laskurit