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Questions tagged [symbolic-math]

Symbolic math tools allows for analytically process mathematical expressions - without the necessity of assigning specific numeric values to variables.

Common software that allows for symbolic math operations include

See this comparison of computer algebra systems (CAS) for other software packages that support symbolic math operations.

Online examples of Computer Algebra System

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Solve linear equation with vectors

Which library is available in .NET to solve equations like this efficiently? The result should be I need this kind of intermediate equation to calculate the minimal distance of a line g and a point P. Maybe there are some other libraries how have…
dannyyy
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JavaScript: Is there any way to do math calculations with unknown variable?

I do not really have any knowledge about Javascript other than trial-and-error experience according to the functions I needed. However I'm stuck with my math calculations now, as I need to be able to do calculations that contain unknown variables…
katrinejc
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Common Lisp - symbolic polynomial calculation

I would like to perform some symbolic calculations on lisp. I found useful derivative function and I would like to know how to write simple recursive function to add/substract/etc. polynomials. Input (e.g.): (addpolynomial '(+ (^ (* 2 x) 5) 3) '(+…
kzz
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Finding the phase of a transfer function symbolically in python

I would like to find the phase of a transfer function in python symbolically I would like for example to find the phase of H_lp1 given below from sympy import * import cmath import numpy as np fr = Symbol('fr', real=True) fo = Symbol('fo',…
Lefti
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How to insert numerical values in symbolical variables?

I want to compute a rotation matrix with symbolical values. After that some numerical values should be inserted and the result should be displayed. How to do this with matlab ? I tried "subs" but this does not compute the sin/cos.. syms d t1 t2…
JHnet
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Is there a difference between mathematical statements and programming statements?

This might be a very funny question for you all, but I am curious to know the answer : i=10 i=i+1 i=i+1 i=i+1 i=? what will be the final value of i in terms of pure mathematics and what will be the final value of i in terms of any programming…
Anonymous
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Solving symbolic equation in matlab

I am trying to solve a symbolic equation of the form D = lamda^12/339288145381785600000 + lamda^10/18124366740480000 + lamda^8/7846046208000 + lamda^6/523908000 + lamda^4/25200 where lamda is declared as sym. The output I get is not in a…
user3829036
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How to evaluate or plot a SYM object?

I am working in a script for solve lagrange interpolation in matlab. I am new in it and i don't know how it works. The data for interpolation are the next X = [0 1 2 4 8] Y = [1 5 10 24 50] Then i build the polynomial od lagrange at this way: syms…
JomsDev
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Converting symbolic equation to fitness function which can be evaluated by genetic algorithm

I have a symbolic equation and wish to convert to a function which can be evaluated by genetic algorithm (ga). I have tried using the matlabFunction and convert the symbolic equation into a matlab file. However, this generated file can only be…
kit
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Symbolic Variable as a Variable

I have a syms Array in MatLab: syms A11 A12 A13 A21 A22 A23 A31 A32 A33 a b c x y z A=[A11 A12 A13;A21 A22 A23;A31 A32 A33] . How do I replace a symbolic variable A11 with an equation: A11=a*x+b*y+c*z
artis_meditari
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Unable to solve matlab expressions

Hello I am new to matlab I have problem solving this simple expression r=10*sin(10)+10*cos(y); This expression is basically a result of the simple integeral equation I coded but now I am unable to solve this equation what i want is to simplify…
Noaman Ahmed
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What are the inputs to the KLEE core-utils experiment discussed in the paper?

I'm having trouble reproducing the results in Figure 7 of this paper: http://www.stanford.edu/~engler/klee-osdi-2008.pdf Specifically, I tried to test the core util's "tac" command doing so: klee.cde -max-time=60 --optimize --libc=uclibc…
user1068636
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What does 6.50486612e-001 stand for?

I understand that 6.50486612e-01 means 0.650486612. But how about 6.50486612e-001? Are 6.50486612e-01 and 6.50486612e-001 the same value? I did some search but didn't find clear answer so far. I hope to receive some useful comments. Thanks.
MinHaw
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Large substitution from symbolic matrix to numerical values while keeping 4 unknowns into the new matrix

I have to solve the equality between 2 matrices 12x12 containing a lot of symbolic variables and with which I perform inversion of the matrix. There are only one unknown called SIGAM_O, and FISH_O_SYM(1,1), FISH_O_SYM(1,2) and FISH_O_SYM(2,2)…
user1773603
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Error while solving system of non-linear equations in MATLAB

I am trying to solve system of non-linear equation simultaneously on MATLAB. I am getting the error: Comma separated list expansion has cell syntax for an array that is not a cell". The screenshot of the error is attached: My code is given…
Muhammad Ali
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