This code works, but is not as efficient & clearly written as it could be. Which "programming style guideline" does this segment of code violate? if tempunits ='F' temp = (temp - 32) * 5/9; else temp = temp; end Use indentation to show the structure Don't use an else clause when there is just one condition and one action Don't write a condition that is more complicated than necessary Don't put unnecessary conditions on else or elseif clauses