[Gretl-devel] line wrapping

Hi, I tried to wrap this long line: c3 = sum(diag((((I(rows(P))-P)*Vpsi)**P)/(I(rows(P)^2)-P**P))) + sum(diag((P/(I(rows(P))+P))*Vpsi)) at the + sign like this: c3 = sum(diag((((I(rows(P))-P)*Vpsi)**P)/(I(rows(P)^2)-P**P))) \ + sum(diag((P/(I(rows(P))+P))*Vpsi)) but gretl gave me a syntax error (within a function package), and I don't really understand why. A bug? thanks, sven