If I am doing a calculation that involves some intermediate value, for example:
$intermediate = \frac{17}{13} = 1.30769230769 \\
answer = intermediate + 10.1345 \\
answer = 1.30769230769 + 10.1345 \\$
what symbol can I use for left to right hand assignment to replace the "ASSIGN TO" so that:
$intermediate = \frac{17}{13} = 1.30769230769$ ASSIGN TO $a_v$
$\\
answer = intermediate + 10.1345 \\
answer = a_v + 10.1345 \\$
which saves having to copy out the $1.30769230769$ again when it may be stored in a variable on a calculator and as such can be used directly from there. $a_v$ is just a made up variable in the context of the working.