A parabola is a curved line with particular characteristics. Any point on the curve is the same distance from a fixed point and a fixed straight line. The result looks like half of an ellipse or the ...

Microsoft Excel is a powerful spreadsheet program which you can use to graph functions, including functions that produce curves. One limitation of Excel is that it doesn't have a built in function to ...

The yield curve is frequently spoken about when investors are discussing bonds and wider economics, but what precisely is it? Here, Telegraph Money explains how to use it. This guide will cover: A ...