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Questions tagged [solver]

A solver is a generic term indicating a piece of mathematical software, possibly in the form of a stand-alone computer program or as a software library, that 'solves' a mathematical problem.

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declaration of decision variables and it's associated constraint using the fico xpress solver python interface

DV = Z_{k1k2}^ j is either 0/1 equal to 1 if k1 and k2 are executed in sequence by j and 0 otherwise. constr = sum_{k_1 \in K'}Z_{k1k2}^j =Y_{k_2} forall{k_2 \in K} forall{j \in J} i ...
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Gurobi in Pulp. How to export MIP gap as output on a new variable?

I am currently tryong to solve a linear problem using pulp and Gurobi. I have defined my problem through pulp and and am using Gurobi as a solver. I wish to save the MIP gap at the end of the solution ...
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Logic equivalence of sub-signals of logically equivalent signals

I have two logic output which I know are logically equivalent (proven using SAT solvers). Now I choose same bits from both signals. Can I say since the complete signals are equivalent then sub-signals ...
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Type code in tensorflow …but this line of code giving me a error I don't know why [closed]

This line is code giving me value error: _,batch_loss=sess.run([optimize.mean_loss],feed_dict={inputs: input_batch, targets: target_batch})
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solving an exponential equation in Raku

I'm trying to solve this exponential equation like this: my ($l,$r); for (1 .. 100) -> $x { $l = $x * e ** $x; $r = 5 * (e ** $x - 1); say $x if $l == $r; } But it doesn't work. ...
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Z3 Solver Java API: Unexpected behaviour

By adding conditions to the solver, I want to check with "solver.check()", whether there exists a solution or not. Therefore, I created a simple example to find a solution for t1. I know that there is ...
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How i can get sum of variables in choco solver

I have IntVar[] orArea = new IntVar[N]; IntVar[] orCount = new IntVar[N]; IntVar[] orRows = new IntVar[N]; IntVar total_trim = model.intVar("trim", 0, 1000); for (int i = 0; i < N; i++) { ...
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Is there a way to compute the solution to this dynamic equation? (Python or Matlab)

I've been trying to solve a three-stage dynamic problem in Python. The problem can be solved via backward induction, but none of the modules I've found (eg Sympy's solveset) allows me to plug in the ...
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Python: How to solve for multiple x values that give the same nonzero output?

I am working with a curve with two parameters (α,β), in addition to the independent (x between 0 and 1) and dependent (y) variables. I have a function which takes a value for the independent variable ...
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How can I create loop in excel using solver?

enter image description here I want to find t11, t12 and l for each row by using solver. My set objective value is "maximize utility" in each row and changing variable are t11, t12 and l and ...
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Log Solutions with Excels Evolutionary Solver

I'm trying to find a top 10 optimal solutions for my model. When using Excels Evolutionary Solver I can find one optimal solution. However, I can't find a way to keep track of what solutions have been ...
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How to determine optimal value in R - Optimization problem

I have below data frame that show sales (in unit) for 4 products for Q1. Each product has a maximum growth rate for Q2 and cost per hundred extra units. Given a budget of 40000, what is the optimal ...
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Auto-schedule solutions using Excel or Python solver

In a certain Week, specific Units (W, U, and S) are available to visit on specific dates. Unit W is available for the whole working week (Monday - Friday), Unit U is only available on Monday and ...
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2answers
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Why Sympy is not solving the eq and returning an empty list?

This is my code, and after one iteration the return from sym.solve is an empty list even when a real solution exist. Why is this happen? What I did wrong? from scipy import * import matplotlib.pyplot ...
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Receiving “Segmentation fault (core dumped)” error for C Sudoku Solver program

This is my first posted question so I apologize for any formatting errors and would be happy to fix them. I have this sudoku solver assignment for my CS class and I'm getting the "Segmentation fault (...

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