The Text Size option controls the size of the text within the calculator. It allows you
to choose between two sizes, Small and Large. The default text size is
Small. If you find the font size of the calculator to be too small for your liking, simply click on
the Large option to switch the calculator into "Large Text" mode. The text of the calculator will
then be larger and easier to read but it will also take up more space on the screen. I leave it up for you to decide
which size you like better.
Here is a side-by-side visual comparison of the two font sizes...