［Phigors鸿隆杯］■◆■◆■◆◆◆■◆◆■■◆■◆■◆◆■◆◆■■■◆◆■■■◆◆■◆◆■◆◆◆◆■◆◆■◆◆■◆■◆◆■■◆■◆

笨蛋海鸿

■＝cos(90°) = cos(π/2)
◆＝ ln(e)