Question

@satellite73 Find the domain of definition and the range of function
f(z) = 2z-5

Answer 1

is it all complex numbers for both?

Answer 2

by the way, this is a complex variables course, so it's obviously either all real numbers for both if this were on a real plane, but since this is on a complex plane, is it just all complex numbers?

Answer 3

btw that either should not be there. ^

Answer 4

why isn't it everything? after all you can solve \(z'=2z-5\) for \(z'\) right?

Answer 5

So it's all complex and real numbers?

Answer 6

since z is a complex number

Answer 7

well i guess u could call a real number a complex number with the imaginary part being 0.

Answer 8

z = a + bi <- a - real part, bi - imaginary part

Answer 9

ok so it's all numbers lol