How to make symbols with keyboard

<a href="http://imgur.com/gallery/nRXB2" target="_blank" rel="noopener">Source</a>

Here are some kind of shortcuts for the creation of new symbols that you want to use at some place. Here are all types of symbols that can be created by using Alter keys in start and plus some numbers. At the keyboard alter key is showing like Alt and in picture alter key can be seen. Alter key is used for for the creation of symbols with numeric key word. It would be helpful for computer operators. Along with every short key symbol name and its icon is showing in picture for better understanding.

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