... a package for automatic generation . ... LanHEP -- a package for automatic generation of Feynman rules in field theory. ... It means that Lagrangian terms can be written with summation over indices of broken symmetries and using special symbols for complicated expressions, such as covariant derivative and strength tensor for gauge fields. ... This output can be written in LaTeX format and in the form of CompHEP model files, which allows one to start calculations of processes in the new physical...