オイラーの公こう式しきMeanings1expression, nounEuler's formulamathematicsMathematical expression e^(iθ) = cosθ + i sinθ, fundamental in complex analysis.オイラーの公こう式しきは複ふく素そ数すう平へい面めんでよく使つかわれる。Euler's formula is often used in the complex plane.
