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Interpreting notations

Some expressions can be written in different ways. The most common equivalent notations are listed here.

Operation Expression Example Equivalent Example
Product $$\Tblue{a}\Tred{b}$$ $$\Tblue{2}\cdot\Tred{3}$$ $$\Tblue{a}\times\Tred{b}$$ $$\Tblue{2}\times\Tred{3}$$
Ratio $$\Tblue{a}/\Tred{b}$$ $$\Tblue{2}/\Tred{3}$$ $$\Tblue{a}\div\Tred{b}$$ $$\Tblue{2}\div\Tred{3}$$
Ratio $$\displaystyle\frac{\Tblue{a}}{\Tred{b}}$$ $$\displaystyle\frac{\Tblue{2}}{\Tred{3}}$$ $$\Tblue{a}\div\Tred{b}$$ $$\Tblue{2}\div\Tred{3}$$
Square $$\Tblue{a}^2$$ $$\Tblue{2}^2$$ $$\Tblue{a}\times \Tblue{a}$$ $$\Tblue{2}\times \Tblue{2}$$

For the product $$\Tblue{a}\Tred{b}$$, note the $$\cdot$$ used to distinguish between $$\Tblue{2}\cdot\Tred{3} = 6$$ and the number $$23$$ (twenty-three).