Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

For example, the SUM function is a popular choice for quickly adding numbers. Instead of writing =A1+A2+A3+A4+A5, you can simply use =SUM (A1:A5). Note that these are both formulas, but only the ...

The equation of a a quadratic function can be determined from a graph showing the turning point and another point on the graph. Brush up on your knowledge on how to recognise and determine the ...

The inverse of the function y = x is y = 1/x. You can find the inverse of a function algebraically, but graphing it is a great way to visualize how an inverse function cancels its parent function out.

IF With AND, OR, and NOT Before I explain how these functions can be used together, I'll explain what each does separately. AND, OR, and NOT on their own help determine the conditions.

The second way to graph the inverse function is algebraic. Start with the original equation’s function, swap x and y, and then solve. For example: f (x) = 5x +10 (original function of x) ...

We study the pluripolar hull of the graph of a holomorphic function f, defined on a domain D ⊂ ℂ outside a polar set A ⊂ D. This leads to a theorem that describes under what conditions f is nowhere ...

The second way to graph the inverse function is algebraic. Start with the original equation’s function, swap x and y, and then solve. For example: f (x) = 5x +10 (original function of x) ...