Question 1

What operations does the basic calculator support?

Accepted Answer

The basic calculator supports addition (+), subtraction (-), multiplication (×), and division (÷). It also handles decimal numbers and follows standard order of operations (PEMDAS/BODMAS).

Question 2

What scientific functions are available?

Accepted Answer

Scientific mode includes trigonometric functions (sin, cos, tan), logarithms (log, ln), powers (x², x³), square root (√), factorial (x!), and reciprocal (1/x).

Question 3

Are trigonometric functions in degrees or radians?

Accepted Answer

All trigonometric functions (sin, cos, tan) in this calculator work in radians. To convert degrees to radians, multiply the degree value by π/180.

Question 4

Does the calculator support keyboard input?

Accepted Answer

Yes! You can use number keys (0-9), operator keys (+, -, *, /), Enter or = to calculate, Escape to clear, Backspace to delete, and decimal point (.) for decimals.

Question 5

What is the difference between log and ln?

Accepted Answer

log (common logarithm) is base-10, used in scientific notation and decibels. ln (natural logarithm) is base-e (≈2.718), commonly used in calculus and exponential growth/decay calculations.

Question 6

How does factorial (x!) work?

Accepted Answer

Factorial calculates the product of all positive integers up to that number. For example, 5! = 5×4×3×2×1 = 120. It only works with non-negative integers.

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