例句與造句

1. Vector calculus was developed from quaternion analysis by J . Willard Gibbs and Oliver Heaviside near the end of the 19th century, and most of the notation and terminology was established by Gibbs and Edwin Bidwell Wilson in their 1901 book, " Vector Analysis ".
2. It's difficult to find quaternion analysis in a sentence. 用quaternion analysis造句挺難的