My input voltage source would be a control voltage keyboard or a sequencer that produces CV in the range of 0 to 5 volts and the output should also produce 0 to 5 volts but in an exponential curve. The graph of the function should look like this if this helps (found the pic on the internet, from an article describing a transistor-based linear to expo converter) where pink is the linear voltage input and green is the expo output, except in the picture the input voltage goes all the way up to 8 volts.
