can we tell (( i was studying at Informatics)) OR (( i was studying informatics)) ?
i was studying at Informatics OR i was studying informatics

Question

can we tell (( i was studying at  Informatics)) OR (( i was studying informatics)) ?
i was studying at  Informatics OR  i was studying informatics

Answer

The subject is called I.T. in English ('informatique' en français). So you would say:

'I was studying I.T.'

Answer

It's: I was studying Informatics (the field of study). I was studying *at* Informatics means that the place was called "Informatics".

Also, always capitalize the first person pronoun, "I".