They are synonyms, which means they mean the same thing, so you can use either; it makes no difference.
However, "optimal" can be made into an adverb, "optimally", but "optimum" cannot.
Both can function as an adjective but only "optimum" can be used as a noun.
In fact, there are some people who believe that "optimum" should only be used as a noun and it's only because people have repeatedly used it as an adjective (incorrectly) over a long period of time that it has become acceptable as an adjective.
So if you want to be safe, it would be best to only use "optimum" as a noun. But I'm sure no one would correct you if you used it as an adjective, especially because all dictionaries I've looked at list it as both.
The same explanation applies to both words, 'the best and most favourable'. Both stem from the same Latin word 'optimus' meaning 'best'. In the English language, optimal is just another word of same meaning, but used less often than optimum
The optimal solution is the best feasible solution
optimum filter is given by a matched filter,when channel noise is white."ankit j. iet"
difference between offer and acceptance?
What is the difference between M1 and M2?
difference between offer and acceptance?
The optimal solution is the best feasible solution
The pH of most yogurts is somewhere between 4.0 and 5.0. Because optimal pH tends to be the pH of the solution, the optimal pH of yogurt would be between 4.0 and 5.0 as well.
In the sentence "The amount of feedback that students receive is not optimal", the word "optimal" is an adjective, more specifically a predicate adjective modifying the simple subject of the sentence, "amount". The word "optimum" does not occur in the sentence, although "optimal" could reasonably be called an adjective corresponding to the noun "optimum". In informal speech, "optimum" itself is often used as an adjective, but "optimal" is preferable for the adjective form.
optimum combination of input
Option, Optimal, Optimum, optional?
The optimum pH for sucrase is 2.0
Maximum means overlimit while optimum means right/perfect amount
the balance between benefit and cost with the largest difference.
The interior optimum method uses an a choice that is determined by the position of an agent at a tangency that rests between the curves of two points on a graph. The boundary optimum method analyzes the position of waves.
optimum pH is 7.3
· opportunity
the optimal temperature of the small intestines is 37.