feathertoucheditingMar 4, 2022The Difference between "Sum" and "Summation" in Mathematical WritingThe difference between summation and sum should be clear enough: summation is the process of adding, whereas a sum is the result of the...
feathertoucheditingAug 5, 2021A Period Never Follows an Exclamation Mark: An Exception to the RuleDouble punctuation is ugly, but unavoidable sometimes. For example, it appears in dialogue: He said, "I try to avoid double punctuation."...