Christian Blatter

ETH Zurich (Switzerland)

math.ethz.ch/~blatter

Age: 79

2h
answered Calculus: volume of revolution about a line other than the $x$-axis.
4h
answered Diagonalise without finding eigenvalues
5h
revised Mean Value Theorem Confusion.
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5h
comment Mean Value Theorem Confusion.
@caffeinemachine: You cannot get Lagrange's version of the MVT from $(1)$ or similar.
8h
revised Having difficulties showing the triangle inequality of metric in the plane
added 737 characters in body
11h
answered Mean Value Theorem Confusion.
12h
comment By applying the second version of the Fundamental Theorem of Calculus find the integral:
@john.smith: Maybe there is more in the full text of the problem; but otherwise you are done.
12h
revised By applying the second version of the Fundamental Theorem of Calculus find the integral:
added 34 characters in body
12h
answered By applying the second version of the Fundamental Theorem of Calculus find the integral:
13h
answered Put B balls in C containers. How many combinations have box(es) with exactly 2 balls?
14h
answered Having difficulties showing the triangle inequality of metric in the plane
1d
comment Analysis problem with volume
@Integral: See my edit. It's even simpler now.
1d
revised Analysis problem with volume
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1d
revised Analysis problem with volume
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1d
answered Analysis problem with volume
1d
answered Showing the right half of the unit hyperbola is a complete metric space.
2d
answered How to establish the formula for area of a triangle using the axioms of area?
Oct
13
awarded Nice Answer
Oct
12
revised Number of binary trees with N nodes
added 70 characters in body
Oct
12
comment How to prove that S = {$(x,y)| y > x^2$} is open?
@augurar: I don't think so. Note that $b>a^2$ by assumption on $P$.
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