" <------------------------- sam069.txt ----------------------------> " <--- A one-element vector is permitted in place of a scalar ------> (,1)/I3 1/I3 &/((,3)?5)EI5 " should always produce 1 &/(3?5)EI5 " should always produce 1 (,2) `O 2 3 5 7 2 `O 2 3 5 7 I,5 I5 &/(3?,5)EI5 " should always produce 1 &/(3?5)EI5 " should always produce 1 )off