Hi I have the following table | name | value1 | value2 | result | |--------+--------+--------+-------------| | first | 4 | 5 | 4.2 | | second | NP | 5 | 0.8 NP + 1. | #+TBLFM: $4=if("$2" == "NP",string("NP"),0.8*$2+0.2*$3) The idea is if the second column has an entry NP then no operation should be applied. But my table does not work. So it seems that there is some syntax error. Thanks Uwe Brauer