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11
votes
2answers
325 views

Find maximum value of interpolation function - obviously wrong result

Minimizing and maximizing interpolation function has already been asked and answered, see here for example. Yet, I observe a strange behaviour. Well, I can understand that the wrong guess of ...
1
vote
4answers
136 views

Finding maximum value with position from Table of values

I have this table of values, how do I find the maximum value? i.e. find $z_{max}(x,y)$ ...
-1
votes
1answer
109 views

Finding the maximum of a gradient vector

Im trying to find the maximum of my gradient vector G[x,y], I've tried several options including FindMaximumValue, FindMaximum etc. but i couldn't find it. The full function is shown below, any help ...
0
votes
1answer
109 views

Finding all maxima and minima of a function

To find all (global and local) extrema of a function in R3 I have written: Example-function ...
0
votes
3answers
98 views

Why does Maximize return a wrong answer?

I want to find the maximum of the following function, but get a wrong result. What am I doing wrong? ...
0
votes
2answers
57 views

How to find a max point from discrete data of function?

I have a lot of points like $\{\{x_1,y_1,z_1\},\{x_2,y_2,z_2\},...,\{x_n,y_n,z_n\}\}$ which obtained by a function $z=f[x,y]$, and I want to find the max point of $z$, say $z_i$, and return the point ...
2
votes
1answer
40 views

Results of ArgMax as a function of a parameter with InterpolatingFunctions

I would like to obtain a function and its derivatives, where the function is defined as the solution to a maximization problem. The obvious approach ...
0
votes
1answer
113 views

Maximization of a 3-variable function

So I define a 3-variable function $h$ and I want to find the maximum of $h$ in a region $\mathcal{R}$: ...
0
votes
0answers
91 views

How do I find where the maximum is?

I have a function given by: ...
1
vote
1answer
180 views

How to find the local maximum of a list [duplicate]

I have imported a wav sound that a = Import["sound.wav"] and we know that soundStrength = a[[1]][[1]] is a list of sound ...
0
votes
1answer
59 views

Moving the start of a graph to the right, finding maxima in an oscillator

I have the following code written to simulate a driven damped oscillator ...
3
votes
3answers
104 views

FindRoot constrained to maximum

I am using FindRoot to find the local maximum op some function, by examining where its derivative is zero. However, keeping the starting value the same, sometimes ...
0
votes
0answers
52 views

NMaximize issue and regularization

I want to maximize over the space (output of NDSolve, in appendix to the question) but I do not think this is strictly important in this case), to get the maxima of the solution as a function of time: ...
2
votes
1answer
155 views

Finding the optimal teams ranking based on the table of match results

My original question was this: So my task is to score all the possible rankings of the 14 SEC football teams and find the best one, using who won in head-to-head games as the sole criterion ...
3
votes
2answers
168 views

How to find the maximum of this function on the positive real line?

I need to maximize this function on the positive real line: $$ \frac{1}{\Gamma(x)^{14}}\cdot\frac{1}{{\frac{323.6}{14x}}^{14x}}\cdot(1.22578*10^{19})^{x-1}e^{-14x} $$ the correct answer should be ...
0
votes
0answers
104 views

Maximum of NDSolve output. Problem with interpolating function

I solve a NonLinear PDE and get a solution (which for other reasons I put into a vector): SolVec1[1][[2]][x,t], where x and t are the indipendent variables. Now, I would like to get a distribution ...
14
votes
4answers
1k views

Moving maximum function?

How can I construct a moving maximum function? For example, if I have a list of 12 values: { 5, 6, 9, 3, 2, 6, 7, 8, 1, 1, 4, 7 } and I want to maximize over 3 ...