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17h
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Apr
13
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Apr
13
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Mar
23
comment Constructing an Equilateral Triangle Inscribed Inside a Circle
Without making extensive guesses, it's impossible to determine what you're really asking. What would your input be? Centers and radii of the circles? The points A ... F? Something else? What, if anything, are you assuming about the shape of the triangle or the relative sizes and positions of the circles?
Mar
19
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Mar
16
comment Estimate error on slope of linear regression given data with associated uncertainty
I posted a solution to the problem of errors in both $x$ and $y$ at stats.stackexchange.com/a/201915/919 . Although it is illustrated with R code, it is readily implemented in Mathematica. I believe it may be the same as the algorithm posted in this thread by J.M., but with some modifications to make it more robust and broadly applicable. In particular, (1) it provides a good starting value for the parameters (by finding an Ordinary Least Squares solution) and (2) it uses the angle of the fitted line rather than its slope as one of the parameters.
Feb
23
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Jan
25
comment NMinimize usage
@Bruce I don't know. I would guess that would have little effect on the frequency of constraint violation, though.
Jan
19
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17
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24
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24
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Aug
9
comment Any solution to system of equations?
It all depends on what you might recognize as being "similar," @Jerry. At the outset this answer announces the problem is special--it's a little hard to characterize it. The "standard approach" I describe is a systematic way to solve a system involving an inequality by means of optimizing a function. As always, YMMV.
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5
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