Questions tagged [parameters]
The parameters tag has no summary.
108 questions
3
votes
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Map a function with a parameter [closed]
I can get the minimum and maximum of a list by using
#[list] &/@ {Min, Max}
I now want to use RankedMin and ...
- 4,044
2
votes
3
answers
322
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Finding parameters of function given its zeros and extrema
Let me use as an example a cubic function (the original problem is much more complicated)
f[x_] := a x^3 + b x^2 + c x + d;
I know that the function has:
zeros ...
0
votes
1
answer
89
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Finding nonnegative solutions for systems of equations with parameters using constraints on parameters
Given
{c[0, 3, 4] + z[0, 2, 3] == c[2, 3, 4] + z[0, 2, 4],
y[0, 1, 2] + z[0, 2, 3] == c[0, 1, 3] + c[1, 2, 3],
y[0, 1, 2] + z[0, 2, 4] == c[0, 1, 4] + c[1, 2, 4]}
...
- 2,459
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1
answer
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Find parameters b, c in a parameterized matrix A(b,c) to match two smallest eigenvalues to target values
I have matrix A that is dependent on two parameters b and c, so A = A(b,c). I need to find values for parameters b,c so that two smallest eigenvalues of my matrix A will be some exact numbers (in my ...
1
vote
1
answer
99
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Manipulate Not Updating Plot When Parameter Changes in Mathematica [closed]
I am using Manipulate to change a parameter in a system of differential equations solved with NDSolve in Mathematica. The system of equations is as follows:
I am using Manipulate to allow interactive ...
1
vote
3
answers
216
views
How can I fit two datasets simultaneously using two different functions but with the same parameters?
There are two sets of data: firstHalf and secondHalf. Both firstHalf and secondHalf are fitted using the models modelPositive and modelNegative, respectively. Both models use the same parameters: MS, ...
- 13
3
votes
1
answer
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How do #1 and #2 work in a function defined by 2 variables?
Can someone please explain the function of #1 and #2 in a pure random function of two variables?
For example, if I had something ...
- 997
0
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1
answer
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Elegant way with minimal redundancy for handling function parameters and starting values when plotting and fitting
The following code shows how I handle making up a function, finding starting values, fitting and plotting. You see that handling the parameter names, starting values, plotting values is highly ...
- 167
1
vote
1
answer
109
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Solving and plotting roots of a non polynomial equation with parameters
In Mathematica 12, I want to find the roots r of this equation in terms of the parameters M and Q, then plot r versus Q for some values of M.
...
- 15
2
votes
1
answer
148
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Expression as parameter to function that evaluates it, best way to do it?
I need a function fSum that computes the angular sum for some expression, like this:
fSum[3 Sin[2 x], 0, 2 π]
Or from a predefined function, like this:
f[x] = 2 Sin[3 x];
fSum[f, 0, 2 π]
Or plots it ...
- 101
0
votes
2
answers
110
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Problem with $ sign in temporary function parameter
I am having a problem with $ sign in the name of a parameter to a temporary function. The functions I have should compute the angular sum (or turning angle) for some expression generated by function <...
- 101
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votes
3
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529
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How to plot a surface given implicitly by 3 equations in 5 coordinate variables?
I have 3 implicit equations in 5 variables: $f_1(S, y_h, y_d, x_h, J)=0$, $f_2(S, y_h, y_d, x_h, J)=0$, and $f_3(S, y_h, y_d, x_h, J)=0$. These equations determine a 3D surface in $S-y_h-y_d$ ...
- 73
1
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1
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Problems with Solve. Only works for specific parameters. Solve function do not "start"
I have the following problem I want to solve the following equalities.
My used code:
...
- 13
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0
answers
114
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Find the condition under which an inequality is satisfied
I need to find the conditions among the variables under which the inequality est-tru>0 holds.
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- 590
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How can I calculate P-Value for a custom distribution?
I used DistributionFitTest but it works only with a defined distribution.
This is the distribution that I used:
...
- 59