How to Create a visual loop plot of sine pi = 3.14 in wolphram alpha?

Question

Mathematics

How to Create a visual loop plot of sine pi = 3.14 in wolphram alpha?
And also a derivative, for example, Pi = 4.
For example, like this:

Answer 1

Pi can only be equal to four in the army. In other places, π = 3.14159265358...
And the sine rises to four only in wartime. In peacetime, he is not able to overcome the unit.

Answer 2

The sine is the Y-coordinate of a point rotating on the unit circle. Pi is the code she made half a turn. What does it mean to make pi=4? Is it half a turn or not? If half a turn, then in pi the sine will be zero. If not half a turn, then explain.
In general, write a formula where the number Pi is used, and replace it with the number you need. In a sinusoid, Pi does not seem to be needed.