solve mathematical equation with 1 unknown (equations are dynamically built)

Posted by chris-gr on Stack Overflow See other posts from Stack Overflow or by chris-gr
Published on 2010-04-27T07:59:04Z Indexed on 2010/04/27 8:03 UTC
Read the original article Hit count: 397

Filed under:

mathematical

|

equation

Hi, I have to built dynamically equations like following:

x + x/3 + (x/3)/4 + (x/3/4)/2 = 50

Now I would like to evaluate this equation and get x. The equation is built dynamically. x is the leaf node in a taxonomy, the other 3 nodes are the super concepts. The divisor represents the number of children of the child nodes.

Is there a library that allows to build such equations dynamically and resolve x?

Thanks, Chris

© Stack Overflow or respective owner

Related posts about mathematical

Bash: evaluate a mathematical term?

as seen on Stack Overflow - Search for 'Stack Overflow'
echo 3+3 How can I evaluate such expressions in Bash, in this case to 6? >>> More
Fixing VBSCRIPT inaccurate mathematical results due to rounding

as seen on Stack Overflow - Search for 'Stack Overflow'
Try running this in a .VBS file MsgBox(545.14-544.94) You get a neat little answer of 0.199999999999932! This rounding issue also occurs unfortunately in Sin(2 * pi) since VB can only ever see the (user defined) variable pi as accurate as 3.14159265358979. Is rounding it manually (and loosing… >>> More
Array: mathematical sequence

as seen on Stack Overflow - Search for 'Stack Overflow'
An array of integers A[i] (i 1) is defined in the following way: an element A[k] ( k 1) is the smallest number greater than A[k-1] such that the sum of its digits is equal to the sum of the digits of the number 4* A[k-1] . You need to write a program that calculates the N th number in this… >>> More
Evaluating a string as a mathematical expression in javascript

as seen on Stack Overflow - Search for 'Stack Overflow'
If I have a string '1+1' is there a way, other than eval(string) to get the numerical value of it i.e. I want to turn '1+1' into 2. >>> More
Mathematical attack on the Digital Signature Algorithm

as seen on Stack Overflow - Search for 'Stack Overflow'
Does anybody know the mathematics behind an attack on DSA where modulus p has p-1 made up of only small factors. In reality, this would not happen as the key generator would guarantee that this is not so. There is much information on the web on generating good input paramters for DSA so that it… >>> More

Related posts about equation

Microsoft equation editor space problem

as seen on Super User - Search for 'Super User'
Hello all, When I use the Microsoft equation editor, if I have a word that is greater than 10 characters in length, the equation editor automatically breaks the word and puts spaces in between them when the object is embedded in a powerpoint slide. For example- If I have the word "automatically"… >>> More
Equation parsing in Python

as seen on Stack Overflow - Search for 'Stack Overflow'
How can I (easily) take a string such as 'sin(x)*x^2' which might be entered by a user at runtime and produce a python function that could be evaluated for any value of x? Does anyone know of any libraries or modules that takes care of this sort of thing? >>> More
How to label each equation in align environment?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I wonder how to label each equation in align environment? For example \begin{align} \label{eq:lnnonspbb} \lambda_i + \mu_i = 0 \\ \mu_i \xi_i = 0 \\ \lambda_i [y_i( w^T x_i + b) - 1 + \xi_i] = 0 \end{align} only label the first equation and only the first equation can be referred later. Thanks… >>> More
Call MiSys Equation API from BizTalk

as seen on Stack Overflow - Search for 'Stack Overflow'
How can I call MiSys Equation API from BizTalk or .NET? Equation is a banking system hosted on ISeries AS/400 server. is the Host Integration server way to go? >>> More
get equation from XML, AS3

as seen on Stack Overflow - Search for 'Stack Overflow'
There's an variable in my swf I want to receive XML. It's an integer value in the form of an equation. How do I receive the XML value for 'formatcount'? My Variable //Variable I want to grab XML<br> //formatcount=int('want xml value to go here'); formatcount=int(count*count/100); Path formatcount… >>> More