# Tagged Questions

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### Solving a large system of nonlinear equations

I have a system of 80 nonlinear equations with 64 variables to solve in Mathematica but it takes a lot of time (about two hours) and then it return "no more memory available" knowing that I have 8GB ...
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### Creating a variable from Reduce[] output in Mathematica

Say I have the following input: Reduce[{t*c==50, t==5}] the output: t == 5. && c == 10. Is there a way to create ...
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### Developing Mathematica applications with IntelliJ IDEA [duplicate]

I create Mathematica application. For example testPrj. Now I want load this application for test. Here is a problem: how can I setup environment for loading my application with simple ...
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### Solving a system with three equations and two variables [closed]

I am trying to solve some equations with two variables. This is the last step in the process of determining a x tilt angle of a molecule, as well its depolarization ...
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### Syntax highlighting conflict

I'm trying to syntax highlight this expression: x=$\sqrt{\pi }$//N and from various sources I've learned that x (the assigned symbol) belongs to context Global while the Pi and N belongs to System. So ...
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### Importing data from excel and assigning a variable to each of its columns

How should I assign variables to the data imported from excel containing 3 columns which are time, mean and standard deviation. I want to perform operations on the three variables to get new ...
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### How do assign an interval of values to a variable in order to use them in a function?

From my code (below) I have K1 and K2 set to zero in order to test this numerical method. However, K1 is on an interval from 0 to 32, and K2 is on an interval from 0 to 8. I would like to know if ...
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### Block, With, Module, can anyone help me understand the distinction? [duplicate]

I've been working heavily with Block[] for months in my research so I've read the documentation for the seemingly similar commands With[], Block[], and Module[]. Personally, I've had by far the ...
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I have a system of expressions, in which each expression is an equality or inequality expression of the following form: Var = Var1 + Var2 Var $\odot$ number Var $\odot$ Var1 $\odot$ = $\leq | \geq | ... 3answers 129 views ### Accessing temporary value of a Nest evaluation The function Nest[] must store the temporary values in the memory somewhere (those values that would form the entries of the list which is returned by the ... 5answers 173 views ### Is there an analogue of the Variables command for general expressions? The command Variables[poly] gives me a list of all variables that appear in the expression poly, which involved sums, ... 2answers 135 views ### Equivalent of __FILE__? Many languages define a special identifier whose value is the path to the source file currently being processed. (For example, in C, this is done through the ... 1answer 169 views ### Solving a differential equation for a variable in a function This may sound like a very trivial question, but I need to solve a differential equation as follows: ... 1answer 583 views ### How to understand and use DSolve solution This equation is simple to DSolve in Mathematica, but I don't know how to use and understand solution. ... 1answer 191 views ### Why do DateList, DateString, and AstronomicalData ignore$TimeZone?

My reading of the documentation for DateList and DateString lead me to believe that both functions use ...