m8052

@m8052@lemmy.world

• ⁨Comment⁩ on ⁨nooo my genderinos⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  You mean limit of sqrt(x) when x->+inf = +inf

• ⁨Comment⁩ on ⁨nooo my genderinos⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  You’re missing the point. Math (especially advanced) is about precision and rigor. Writing sqrt of something negative is ambiguous. There are better ways of writing it as explained here lemmy.world/comment/18924227

• ⁨Comment⁩ on ⁨nooo my genderinos⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Square root definition does not allow a negative number as an input. Only positives and zero. Although it is possible to expand the definition to negative numbers, complex numbers, matrices… So unless you followed a course where you thoroughly defined your expansion of sqrt, it only applies to real, positives number and zero. Its the thing with math, you have to define what you work with.

• ⁨Comment⁩ on ⁨nooo my genderinos⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Sqrt(-1) is still wrong tho. I’m commuting a sin by writting it. Correct expression is i^2=-1