What are the electronics symbols for 'if' (and only if/ if...then), 'and' and 'or'?

Question

anonymous · Answer

It is a logical gate. Look up Logical gate on Google. Logical gates are mainly made up of transistors and diodes to create a switch. An if then statement is a switch. If a condition is true or false something happens, else something else happens.

anonymous · Answer

For as far as I know, there is no special electronics symbols for an if, though in text most often standard mathematical notation is used.

If you mean symbols in boolean algebra, a `$ \cdot $' or simple multiplication (e.g. ab for a and b) is used for `and', a `+' is used for an `or' and I can't recall anything like an if in boolean algebra.

If you mean circuit symbols, see the image below. From left to right: an `and' gate, an `or' gate and a multiplexer. A multiplexer comes closest to an if, else statement. If the selection signal (the lower, vertical input, is low, the input labelled `0' will be send to the output, otherwise the input labelled `1' will be send to the output.

|dw:1342213127039:dw|