In this article, we have learnt about a few token elements that are used as text containers as well as their different semantics, namely (identifier), (numbers), (operators), (generic text). We have seen special Unicode characters that are commonly found in math formulas and given an overview of some observable behaviors of the and elements. In the next article, we will see how to rely on token elements to build much complex expressions such as fractions and roots....previous exercise , one can make operators stretch vertically...fonts are generally required to make that stretching possible, the...