I'm proofreading someone's article for publication, but I'm not a professional proofreader. The document is in Word 2007, and some of the formulas have been created by just typing (with superscript, subscript, etc.), along with "insert Symbol", and some have been created by using Word's equation editor ("Insert Equation"), and some by a mixture of the two techniques. The problem is that some of the equations are in italics , some in plain, and some in a mixture. I suppose I must convert all of these to having one or the other style, but I don't know which. Advice? Thanks in advance.