• Unlearned9545
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    1 month ago

    Engineer here: mostly use i, but have seen j used plenty. First time I saw j used was by a maths professor.

    • Avicenna
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      1 month ago

      Interesting I never saw j from a maths person. Friends (from a decade ago!) in electronics eng dep said they use j because i was reserved for current. perhaps the latter depends on the department.