Cr1niputi:r experiments may be defiiied as the-iirc~tic:il :in:ilyses i n which the computer plays the ccntr:il I-iilc in evaluating the consequences of the iir;ithi'matical modcl ,if the p r o c r s s or phenomenon utidi~r investigatioii. i c x p~r t n~c n t s " to study problems related to chemic : i l prq)ulsicm f o r m s the subject of the present s u r v r y. Several different types of experiment are