例句與造句

1. Arithmetic with infinity does not obey all of the usual rules of algebra, and so the extended complex numbers do not form a field.
2. This extended plane represents the "'extended complex numbers "', that is, the complex numbers plus a value  " for infinity.
3. On a purely algebraic level, the complex numbers with an extra infinity element constitute a number system known as the "'extended complex numbers " '.
4. The extended complex numbers are useful in complex analysis because they allow for division by zero in some circumstances, in a way that makes expressions such as =  " well-behaved.
5. It's difficult to find extended complex number in a sentence. 用extended complex number造句挺難的