equations

Does anyone know how to show mathematical equations in QTextEdit written in any format (TXT, MathML, MML, LaTeX, HTML, XML or anything) using only Python, that is without using 3rd party packages like Latex itself.? I tried to find the MathML Widget from Qt but it disappeared from their web site and I couldn't find it anywhere. I'm not fussed about the equation source (either a string or a file). I just can't figure out how to show them nicely (the same way as they appear on a web page, e.g. http://en.wikipedia.org/wiki/MathML ). My QTextEdit currently gets an HTML string. I tried embedding

I recently rediscovered a small package by Roman Maeder that tells Mathematica to automatically thread arithmetic and similar functions over expressions such as x == y. Link to Maeder's package. First, to demonstrate, here's an example given by Maeder: In[1]:= Needs["EqualThread`"] Now proceed to use the threading behavior to solve the following equation for x 'by hand': In[7]:= a == b Log[2 x] In[8]:= %/b Out[8]:= a/b == Log[2 x] Now exponentiate: In[9]:= Exp[%] Out[9]= E^(a/b) == 2 x And divide through by 2: In[10]:= %/2 Out[10]= (E^(a/b))/2 == x Q: From a design perspective, can someone

I want to read only the xml used for generating equation, which i obtained by using Paragraph.Range.WordOpenXML . But the section used for the equation is not as per MathML which as i found that the Equation of microsoft is in MathML . Do I need to use some special converter to get desired xmls or are there any other methods? Hans You could use the OMML2MML.XSL file (located under %ProgramFiles%\Microsoft Office\Office15 ) to transform Microsoft Office MathML (equations) included in a word document into MathML . The code below shows how to transform the equations in a word document into MathML

Possible Duplicate: I need a fast runtime expression parser How do I make it that when someone types in x*y^z in a textbox on my page to calculate that equation in the code behind and get the result? .NET does not have a built-in function for evaluating arbitrary strings. However, an open source .NET library named NCalc does. NCalc is a mathematical expressions evaluator in .NET. NCalc can parse any expression and evaluate the result, including static or dynamic parameters and custom functions. Greg Answer from operators as strings by user https://stackoverflow.com/users/1670022/matt-crouch :

I'm trying to solve an equation in python using SymPy. I have a generated equation (something like function = y(8.0-(y**3.0)) which I use with SymPy to create a new equation like this: eq = sympy.Eq(function, 2) which outputs y(8.0-(y**3.0)) == 2 . but sympy.solve(eq) doesn't seem to work. >>> from sympy import Eq, Symbol as sym, solve >>> y = sym('y') >>> eqa = Eq(y(8.0-(y**3.0)), 8) >>> solve(eqa) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/pymodules/python2.6/sympy/solvers/solvers.py", line 332, in solve result = tsolve(f, *symbols) File "/usr/lib

I want to solve these equations using MATLAB and I am sure there is a non zero solution. The equations are: 0.7071*x + 0.7071*z = x -0.5*x + 0.7071*y + 0.5*z = y -0.5*x - 0.7071*y + 0.5*z = z I wrote in MATLAB: [x,y,z]=solve('0.7071 * x+0.7071 * z=x','-0.5 * x+0.7071 * y+0.5 * z=y','-0.5 * x-0.7071 * y+0.5 * z=z'); But the result is x = y = z = 0. As I said I am sure that there is a solution. Can any one help? You're looking for a non-trivial solution v to A*v=v with v=[x;y;z] and... A = 0.70710678118655 0 0.70710678118655 -0.50000000000000 0.70710678118655 0.50000000000000 -0.50000000000000

I have the following Equations T2+T4-3.615*T1=0; T1+10+2*T5-5.752*T2=0; T1+38+2*T5-4*T4=0; 83+T4+T2+10-4*T5=0; i've tried the following to find the values of T1,T2,T4,T5 syms T1 T3 T4 T2 T5 positive T2+T4-3.615*T1=0; T1+10+2*T5-5.752*T2=0; T1+38+2*T5-4*T4=0; 83+T4+T2+10-4*T5=0; sol=solve(T1,T2,T3,T4) but its not working. You have 4 equations and 4 unknowns. This is very easily solved in MATLAB using the equation AT = b , where T = A\b . First move all the constant values over to the RHS. Then, reorder the equations to the form below (but don't write a11 = -3.615 etc in MATLAB, it's just to