What is the difference between DEG and RAD modes in trigonometry?

DEG (Degrees) mode assumes angle inputs are based on 360° for a full circle (e.g. sin(90°) = 1). RAD (Radians) mode assumes angle inputs are in natural mathematical radians based on 2π for a full circle (e.g. sin(π/2) = 1).

What is the order of operations in scientific calculation?

Calculations strictly follow standard PEMDAS/BODMAS mathematical precedence: Parentheses/Brackets, Exponents/Roots, Multiplication & Division (left to right), and Addition & Subtraction (left to right).

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Perform trigonometric functions, logarithms, powers, factorials, and complex algebraic operations.

DEG RAD

Mathematical Functions & Calculation Precedence

The Tool Nest Scientific Calculator evaluates mathematical expressions strictly according to standard algebraic hierarchy rules (PEMDAS / BODMAS):

P / B: Parentheses & Brackets first.
E / O: Exponents, powers ($x^y$), roots ($\sqrt{x}$), and logarithmic functions.
MD / DM: Multiplication & Division evaluated left to right.
AS: Addition & Subtraction evaluated left to right.

Scientific Calculator

Mathematical Functions & Calculation Precedence

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