Why do we need algorithms ?

• Our world needs more and more technical solutions, more ergonomics and wants to find answers when new problems appear.
• Our powerful computers are able to manage billions of operations in a few seconds, but they need powerful softwares to organize the operations.
• To communicate and to explain things, to deal with difficulties and maintenance a team has to use description tools.

Algorithms help for all these issues.

For example the picture below represents a complicated shape that was found by a designing program.  It's an antenna that creates the best radiation pattern. A lot of engineers worked on this project and they needed powerful algorithms to produce this result.