例句與造句

1. The catalecticant of a ternary quartic is the resultant of its 6 second partial derivatives.
2. For a ternary quartic the catalecticant vanishes when the form is a sum of 5 4th powers.
3. It vanishes when the ternary quartic can be written as a sum of five 4th powers of linear forms.
4. It's difficult to find ternary quartic in a sentence. 用ternary quartic造句挺難的