Hi there, new to Forum, but I think that cct (Post#10), is wrong. My understanding (is/was) you have a fixed R from Output to Adjust and then a variable to Gnd. The fixed Res and variable need to be low values so the chip-current is small compared with the bleed current, but this may be so as make calculating OP voltage easier.
I looked at National Semiconductor who provide a .pdf Data Sheet . . . surely the place for posters to start?
As I come for Britain, there is a tendency to adopt European conventions and the ziz-zag (for resistors) went out about fourty years ago, we use a rectangle and values are designated with R, k, or M, thus a speaker might be 8R0 and the input to a DMM about 20M - this scheme avoids the use of ohm symbol (omega) which is inconvenient to include in a short message, on a sketch, etc.
If you use feint squared paper, it is very easy to get comnponents in a very neat layout, ready for the photocopier which (usually) makes the grid disapear.
I suggest OP has a read of that datasheet and all will be revealed, along with significant parameter worries he'd not thought of.
Is that any help?
PS Post#11 is spot-on as I read it, but I think OP wanted a blow-by-blow explanation....