PG1995
Active Member
PG1995,
Yes, already explained in post #3 of this thread.
It is wrong to think of operator j as a constant. Sometimes folks use j as an abreviation for 1/_90°, which is a constant. In that case, it is not being used as a operator anymore. You have to judge which is which by the context of the usage. So when used as a operator, j has no value. Neither do the other math operations ±,*,/,√,etc.
Ratch
Thank you, Ratch.
Okay, so 7j means to rotate 7 by 90 degrees CCW. When we rotate 7 by 180 degrees CCW, which as you say is shown by 7j^2 or 7i^2, we get 'real' result of "-7" but what do we get by '7j'?
I don't understand why you are saying that it is wrong to think "j" or "i" as a constant. As a side note, I personally don't consider sqrt(-1) even a constant because it evaluates to nothing and it's just a piece of 'nonsense'. The operator "j", as you describe it, comes into existence when we try to perform square root operation on -1 which is mathematically impossible.
Please help me out of this confusion. Thank you.
Regards
PG
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