In general is there a convention as to how one interprets squiggly lines in chemical structure notation?
e.g. see the below sketch. I suppose it has something to do with cis / trans isomerism. But e.g. where do you draw the squiggly i.e. which side of the double bond? Is it used in other contexts as well? And does it mean we don't know which isomer is formed or does it mean we are talking about a cis + trans mixutre?
Larger context here (so the explanation about variable chain length may not make sense?)