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| Looks like there are multiple determinants that represent an expression. In[3]:= Reduce[ Det[{{a1, b1}, {c1, d1}}] == Det[{{a, b}, {c, d}}], {a1, b1, c1, d1}] Out[3]= (a1 != 0 && d1 == (-b c + b1 c1 + a d)/a1) || (a1 == 0 && ... |
| Perhaps you've found these tutorials, but in case you haven't: - http://reference.wolfram.com/language/tutorial/UnconstrainedOptimizationNewtonsMethodRoot.html -... |
| As a habit anytime I start getting unexpected results I completely shutdown Mathematica and start a fresh session Quite often the culprit turns out to be some leftover variables from previous computations This is not the case here though. As... |
| Myself, I have never had any luck connecting with MS SQL 2008 or 2012. I know this may not answer your question but it might point to it being something not related to v2014. |
| The x taking 1, 2, 3, 4, ... is a time eater, Ilian's In[2] is latev1[l_] := Module[{b = {}, i, k, m = 1, s, x}, For[i = 1, i = m, b = s; m = Length[s]] ] ]; b ] /; VectorQ[l, IntegerQ] && OrderedQ[l] take the x at... |
| @Toder If you wrap the SetName operation in Trace you can see what's going on. In the first case, `Name` is a local symbol because you're using it inside a function that has Person[Name_String, ...] as a pattern. So {Name -> "George"} becomes {"John"... |
| Wrapping the pattern expression head Pattern in Verbatim is the type of hold you are looking for.In[ ]:= GP /. Verbatim[Pattern][p_, _] :> p Out[ ]= GeoPoint[Name, {East, North}, Elev] |
| Thanks Daniel and Jari for the great links - looks like this is indeed a well defined mathematics problem which I was unaware of. |
| Do you have a version of this notebook that you can share here? It's difficult to answer this question without seeing the exact problem. |