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Aug
20
comment Web Browsing Automation with Mathematica
@ArnoudBuzing Are there any new functionalities added in the new version?
Aug
16
awarded  Enlightened
Aug
16
awarded  Nice Answer
Aug
7
awarded  Nice Question
Aug
4
reviewed Approve Mathematica won't maximize my function
Aug
4
reviewed Approve logarithmic-scale tag wiki
Aug
4
reviewed Approve modeling tag wiki
Aug
4
comment Maximizing a 3-variable function
You had a typo! Twice the constraint on x. By the way Maximize[{(a*x^2 + b*y^2), 0 <= x <= a, 0 <= y <= b, 1 < a, 1 < b}, {x, y}] prints $a^3+b^3$ and the other unbounded solutions too. Now for your original problem symbolic calculation becomes probably too involved to give closed form bounds in terms of {m,n,t}. Not sure if one can hack a solution in closed form here without any extra info on those constants.
Aug
3
comment Maximizing a 3-variable function
You have to provide some values for {m,n,t} or give some constraints. You can use Block to do that for example. Block[{m = 132, n = 10, t = 22}, NMaximize[{f[x, y, z], 0 <= x <= Min[t, z], 0 <= y <= m - z + x, 0 <= z <= n}, {x, y, z}]] gives me {5161., {x -> 10., y -> 61., z -> 10.}} if I use numerical version of Maximize.
Aug
3
reviewed Approve prime-numbers tag wiki
Jul
31
reviewed Approve units tag wiki excerpt
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reviewed Approve map tag wiki excerpt
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reviewed Approve map tag wiki
Jul
28
comment solving non-linear set of equations using NSolve in order to get all roots
Here goes a numerical solution for you {phip -> -1.2873402582429818, t -> 414.62463948474345}. As far as I can see there is no real root for t<0. Also using Plot3D I doubt if there is any solution to {S1==0, S2==0} for t>0 and phip>1. Function is also unbounded in that region.
Jul
28
reviewed Approve cells tag wiki excerpt
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reviewed Approve cells tag wiki
Jul
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reviewed Approve Extract information from HTML using CSS selectors?
Jul
28
reviewed Approve graphs-and-networks tag wiki
Jul
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reviewed Approve procedural-programming tag wiki excerpt
Jul
28
reviewed Approve procedural-programming tag wiki