A Venn diagram is a way of grouping different items. These groups are known as sets. We have a set of golf clubs or a set of dishes – these are just groups of those items. We write a set using a ...

A set can be represented by closed figures like circles, triangles, rectangles etc. The point in the interior of the figure represents the elements of the set. Such a representation is called a Venn ...

Standard graphical representations have played a crucial role in science and engineering throughout the last century. Without electrical symbolism, it is very likely that our industrial society would ...