Is x^x=0 solvable?



Let’s discuss if the power tower equation x^x=0 is solvable or not? Of course, we will discuss the real cases and the complex cases. Then we talk about the limit.

The limit of x^x as x goes to 0+:

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50 Comments

  1. How can both 1^0 and 1^1 be both 1. … therefore 1^0 = 1^1. Is 0^0 also equal to 0^1 bydefinition? 😂😂😂 0^0 is 1 by definition. Anything to 0 is 1. For 0^1 -anything to 1 is itself by definition.

  2. why can't you just write out what x^x actually means, which is x • x • x •… • x, x times, then equal it to 0. there's only 1 number that when multiplied gives 0, which is 0. that concludes the fact that there's not a single solution that would give 0 other than 0^0, but 0^0 is undefined so there's no solution

  3. since were talking about it ill argue 0^0=1 again
    1^0 = null = *1 = 1
    2^0 = null = *1 = 1
    the calculation does not change, it completely ignores the base.
    whereas ;
    0^1 = 0
    0^2 = 0*0 = 0
    this DOES change which means it cannot overwrite properties of the exponent that completely change the way the calculation works such as not using the base.
    hense [anything]^0 = 1

  4. Quite late on this one, but is there a problem just switching to base e? That is, it becomes e^(x ln x) which is non-zero for all x, whether complex or real, hence it has no solutions.

  5. 7:40
    cant we just say if x => -inf, |x| -> inf
    so 1/|(-x)^(-x)| = |x|^x = |x^x| also goes to zero,
    thus as at the limit |x^x| converges to 0, then so should x^x because |z|=0<=>z=0 for z any complex number

  6. I don’t think I quite agree with not being able to say -infinity approaches 0 even with irrational numbers, considering the i factor would also be shrinking quite fast, no?

  7. I don’t think I quite agree with not being able to say -infinity approaches 0 even with irrational numbers, considering the i factor would also be shrinking quite fast, no?

  8. I may have posted this before here, but the way I think of x^y is not "x multiplied by itself y times", but instead as "1 multiplied by x, y times".

    So, for example, take 3^4. That's 1 multiplied by 3, 4 times, i.e. 1 x 3 x 3 x 3 x 3.

    3^3 = 1 x 3 x 3 x 3
    3^2 = 1 x 3 x 3
    3^1 = 1 x 3
    3^0 = 1

    Now apply this to 0^x

    0^3 = 1 x 0 x 0 x 0
    0^2 = 1 x 0 x 0
    0^1 = 1 x 0
    0^0 = 1

    See? It …. actually makes sense (kind of).

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