mugetsu

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visits member for 1 year, 3 months
seen Apr 13 at 8:30
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Feb
6
 asked Given one endpt on an arc of a circle and the radius and arc angle, how to calculate the other endpt of the arc?
Oct
14
 accepted reducing invertible matrix in an equation of matrix
Oct
14
 comment reducing invertible matrix in an equation of matrix
could you explain the steps for me? thanks
Oct
13
 comment reducing invertible matrix in an equation of matrix
thanks for the help. I think i misinterpreted the problem and now I'm going with A as a 3x3 matrix
Oct
13
 comment reducing invertible matrix in an equation of matrix
@EuYu i think i may have interpreted this question incorrectly, now A is really invertible
Oct
13
 revised reducing invertible matrix in an equation of matrix
edited body
Oct
12
 comment reducing invertible matrix in an equation of matrix
@EuYu going from that, can't I take off A transpose from both sides?
Oct
12
 revised reducing invertible matrix in an equation of matrix
added 30 characters in body
Oct
12
 revised reducing invertible matrix in an equation of matrix
added 2 characters in body
Oct
12
 comment reducing invertible matrix in an equation of matrix
hmm you guys are right, that makes no sense. If we assume that ATA is invertible, then what does this reduce to?
Oct
12
 asked what is an integral multiple of a period?
Oct
12
 asked reducing invertible matrix in an equation of matrix
Apr
13
 awarded  Scholar
Apr
13
 accepted Why is $|1+e^{i\phi}|=|2\cos(\phi/2)|$?
Apr
13
 awarded  Supporter
Apr
13
 awarded  Editor
Apr
13
 revised Why is $|1+e^{i\phi}|=|2\cos(\phi/2)|$?
forgot to include abs value
Apr
13
 asked Why is $|1+e^{i\phi}|=|2\cos(\phi/2)|$?
Feb
6
 awarded  Student
Feb
6
 comment How to integrate this function with cos and sin
got it, that works
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