While giving online JEE Mains exam on computer screen..did we get the in build calculate for calculation at same time?
No.
Calculators were not allowed in the online format of JEE MAINS.
Hope this helps.
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No, not at all you can't be able to use the calculator during the exam. Infact if you carry it of your own then in such cases your paper will also get disqualify. So better do your calculations manually only.
All the best