主しゅ値ち

noun

principal value

Mathematics term for the single value chosen from a multi-valued function, such as the principal value of an inverse trigonometric function or complex logarithm.

• 逆ぎゃく三さん角かく関かん数すうの主しゅ値ちは通つう常じょう、特とく定ていの範はん囲いに制せい限げんされる。

  The principal value of an inverse trigonometric function is usually restricted to a specific range.

• 複ふく素そ対たい数すう関かん数すうの主しゅ値ちは、偏へん角かくを -π から π の範はん囲いで選えらぶ。

  The principal value of the complex logarithm is chosen with the argument in the range from -π to π.