Question 1

What functions does a scientific calculator include?

Accepted Answer

Common functions include trig (sin, cos, tan), inverse trig, logs (ln, log10), powers, roots, factorial, permutations/combinations, and scientific notation.

Question 2

How do I switch between degrees and radians?

Accepted Answer

Use the DEG/RAD toggle. Trig inputs are interpreted in the active mode, so confirm the setting before calculating.

Question 3

What is order of operations?

Accepted Answer

PEMDAS: parentheses, exponents, multiplication/division, addition/subtraction. Functions like sin() act at the highest level on their arguments.

Question 4

How do I enter scientific notation?

Accepted Answer

Use the EE (x10^) key: for 6.02 x 10^23, enter 6.02 EE 23.

Question 5

Why do my results differ from my teacher's?

Accepted Answer

Mode mismatches (deg vs rad), rounding, or implicit multiplication can cause differences; check settings and parentheses.

Advanced Scientific Calculator