Algebra & Equations

Complex Argument

Angle of a complex number (degrees).

Formula

Formula
arg = atan2(b, a)

Variables

SymbolDefinitionType & rangeUnitsRole
a real part real number (ℝ) real input
b imaginary part real number (ℝ) imag input

Try it yourself

Interactive calculator
Result

Worked examples

Example 1
Givena (real) = 1, b (imag) = 1
Result45
Example 2
Givena (real) = 0, b (imag) = 1
Result90