I have some matrices of decent size (2000*2000) and I wish to have symbolic expressions in the elements of the matrices - i.e. .9**b + .8**b + .7**b ... is an example of an element. The matrices ar...

I have a problem with symbolic functions. I am creating function of my own whose first argument is a string. Then I am converting that string to symbolic function: f = syms(func) Lets say my str...

I'm trying to do some symbolic matrix calculations with sympy. My goal is to obtain a symbolic representation of the result of some matrix computations. I've run into some problems which I have boi...

If I start with the following symbolic expression: a^2 + 2*a*b + b^2 Then run simplify (or factor), I get the expected result: >> simplify(a^2 + 2*a*b + b^2) (a + b)^2 Now when I run t...

When you call vpa (from Octave's symbolic package) for the first time, Octave produces some text on screen before outputting the actual result. For example: >> x = pretty(vpa('sqrt(-1)')) Oc...

I have a rather large symbolic function that is evaluated for different values of a parameter in a loop. In each iteration, after finding the expression of the function, partial derivatives are der...

I have some expressions such as x^2+y^2 that I'd like to use for some math calculations. One of the things I'd like to do is to take partial derivatives of the expressions. So if f(x,y) = x^2 + y^...

I am having a lot of trouble trying to make symbolic substitution go faster - that is, substituting in for variables in a symbolic expression and getting out a double. I am creating a complicated ...

For the purposes of what I want to do I need to take a user input as a string and convert it into an unevaluated function. For example, if the user input was "x^2*sin(x)" I would need a function th...

I'm trying to get Matlabs's MuPad as pretty and convenient as MathCad. Assume two variable assignments: x_a:=2*unit::mm; y_b:=5*unit::mm; and I want a prettyfied (typeset with Tex) output like ...

I wish to calculate limits (calculus) with Java. I have the following class Limit that can calculate limits: package calculus; public final class Limit { private Limit() { } public static fi...

We have theano and numpy in Python to do symbolic and numeric computations, optimising our Machine Learning computations (eg: Matrix multiplications and GPU usage). What are the relevant tools in C...

How can we convert Latex representation into symbolic math. For example, A LaTex representation y = \int x^2 Has an equivalent symbolic math representation as syms x y = int(x*x, x) Is the...

I have been trying out a couple computer algebra libraries for C++ to use with a vector calculus course I am taking. I am having trouble with nonlinear equations in GiNaC and in SymbolicC++ it actu...

I need to manipulate expressions like 1 + sqrt(3) and do basic arithmetic like addition, subtraction, and division. I'd like the result to be in some sort of canonical form so that it can be ...

I have a simple algebraic relationship that uses three variables. I can guarantee that I know two of the three and need to solve for the third, but I don't necessarily know which two of the variabl...

I was testing with the symbolic toolbox of Matlab. And wonder why it is so slow even when just calculating with symbolic numbers. To test it I wrote this syms x x = subs(x,1); a = 1; tic for i=1...

I have a number of symbolic expressions in sympy, and I may come to realize that one of the coefficients is zero. I would think, perhaps because I am used to mathematica, that the following makes s...

While trying to model polynomials, in particular their multiplication, I run into the following problem. During the multiplication, the individual monomials of the two polynomials are multiplied an...

SymPy is a great tool for doing units conversions in Python: >>> from sympy.physics import units >>> 12. * units.inch / units.m 0.304800000000000 You can easily roll your own: ...

Using Sympy, say we have an expression f, which is a polynomial of the Symbol "x" (and of potentially other symbols). I would like to know what if there is an efficient way to drop all terms in f...

I setup Anaconda 2.0.0 (Win 64). It has SymPy 0.7.5. I configured Spyder (2.3.0rc that came with Anaconda) to use symbolic math: Tools > Preferences > iPython console > Advanced Settings > Symbol...

In sympy, given a matrix equation M * x + N * y = 0 (or more complicated..) how to solve this for x? (M,N = matrices, x,y = vectors) I tried this with normal symbols, but obviously this failed. ...

I'm trying to use [SymPy][1] to substitute multiple terms in an expression at the same time. I tried the [subs function][2] with a dictionary as parameter, but found out that it substitutes sequent...

I've been trying to compute the jordan normal form of a 36-by-36 matrix composed of only three distinct entries, 1, 1/2, and 0. The matrix is a probability transition matrix so, given these entries...