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Jonathan Cast's user avatar
Jonathan Cast's user avatar
Jonathan Cast's user avatar
Jonathan Cast
  • Member for 11 years, 2 months
  • Last seen this week
16 votes

Why do we need the absolute value signs when integrating the square of a function?

11 votes

Do mathematicians, in the end, always agree?

6 votes

Is there more to explain why a hypothesis doesn't hold, rather than that it arrives at a contradiction?

6 votes

What is the order when doing $x^{y^z}$ and why?

6 votes

Why can a quadratic equation have only 2 roots?

4 votes

Is every noninvertible matrix a zero divisor?

3 votes

Problem in the second-derivative symbol.

3 votes

Are all "numbers" just one unit value transformed by a function?

3 votes

Rigorous definition of "differential"

2 votes

A set without the empty set

1 vote

What is wrong with this argument that closed interval [0, 1] is not compact?

1 vote

Solved to be 7 after arithmetic

0 votes

Is the following limit undefined?