The first function anyone should know tells Excel to carry out basic arithmetic. Let’s say you wanted the numbers in cell A2 and cell B2 to be added together in cell C2. All you’d do is enter ...

Microsoft Excel is incredibly versatile, but there are a lot of functions you might not even know about. These are some of the best ones.

National 5; Working with the graphs of trigonometric functions Example. Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points.