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Karan Gill

MathWorks

Aktiv seit 2015

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I write the Symbolic Math Toolbox documentation.

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  • First Review
  • 6 Month Streak
  • Knowledgeable Level 4
  • Revival Level 2
  • First Answer

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Beantwortet
substitute value for variable
You shouldn't overwrite |I1|. Overwriting |I1| will not automatically substitute for it in |Wo1|. Instead, remove |I1 = trace(B)...

fast 7 Jahre vor | 1

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Beantwortet
Passing the numeric matrix to symbolic function
You're not passing any arguments to the function. To learn that, see <https://www.mathworks.com/help/matlab/ref/function.html?s_...

fast 7 Jahre vor | 0

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Beantwortet
Solving a third order ODE in MATLAB
Do you not get this warning? If you got it, was the warning clear? Warning: Unable to find explicit solution. > In dsol...

fast 7 Jahre vor | 0

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The output is displayed as syntax error for the question ilaplace(4/sˆ3,s,t).Tried a lot but couldn't figure it out.Please help.
Your "ˆ" is wrong. Should be "^". Try ilaplace(4/s^3,s,t)

fast 7 Jahre vor | 2

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Beantwortet
Absolute Newb: How Does Licensing Work?
You definitely need to contact support: <https://www.mathworks.com/support/contact_us/index.html?s_cid=ans2doc_man_link https://...

fast 7 Jahre vor | 1

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Beginner: Can help with my code? it seems it does not work, and I always get an error.
It looks like |p| and |q| and maybe other inputs are text inputs. Symbolic functions need symbolic input. Use |str2sym|: <https:...

fast 7 Jahre vor | 0

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How to use poly2list for specific variables?
In general, I don't recommend using MuPAD commands, as the note at the top says. Is |coeffs| helpful? >> syms x y p =...

fast 7 Jahre vor | 0

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symbolic vector to usual vector.
You don't need a loop to sum |g|. Just use |sum|. Then use |vpasolve| instead of |solve| to get numeric results. Easy. |vpaso...

fast 7 Jahre vor | 0

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How can I solve This system of ODEs?
You have numeric values in your equations, so solve this numerically. Try |ode45|: <https://www.mathworks.com/help/matlab/ref/...

fast 7 Jahre vor | 0

Beantwortet
Error: Conversion to double from sym is not possible.
To plot symbolic expressions, use |fplot| instead of |plot|. See <https://www.mathworks.com/help/symbolic/fplot.html?s_cid=ans2d...

fast 7 Jahre vor | 0

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Add more latex packages for latex interpreter in Matlab
Googling found If not then see <http://www.mathworks.com/matlabcentral/answers/52340-why-do-deep-paths-in-usepackage-cause-te...

etwa 7 Jahre vor | 0

Beantwortet
How do I solve an equation with multiple symbolic variables with a condition on one of the variables?
You should first solve the equation for |c| and then use that value to find |fs|. Also, your problem sounds like an optimizat...

etwa 7 Jahre vor | 0

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Hi Guys! Please can someone help me plot JUST THE REAL (not imaginary) part of this two differential equations, here is my code? Thank you.
Use the |real| function. fplot(real(I_1Sol)) Does this give the expected plot? Karan.

etwa 7 Jahre vor | 0

Beantwortet
fplot differentiated symbolic equation
You made a simple mistake. You used anonymous functions instead of symbolic functions. Declare a symbolic function using sy...

etwa 7 Jahre vor | 0

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Help with iterating to get one final value with for loop
Do not use |f1(i)|. Instead use subs: <https://www.mathworks.com/help/symbolic/subs.html?s_cid=ans2doc_man_link https://www.math...

etwa 7 Jahre vor | 0

Beantwortet
another way to compile my guide without using the matlab compiler?
I think you're looking for |matlabfunction| : <https://www.mathworks.com/help/symbolic/matlabfunction.html?s_cid=ans2doc_man_lin...

etwa 7 Jahre vor | 0

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Beantwortet
Error using plot ; spectrum of function
Plot symbolic functions by using |fplot|. fplot(h) See <https://www.mathworks.com/help/symbolic/fplot.html?s_cid=ans2doc...

etwa 7 Jahre vor | 0

Beantwortet
fplot keeps returning horizontal line
You are plotting a constant |Atom_Cf_P| with value |1.8235e-78|. A horizontal line is the expected output. What were you expecti...

etwa 7 Jahre vor | 0

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Beantwortet
how to calculate the maximum value of a function assigned to a 'sym'?
The |max| function does not find the maximum of a symbolic function. Please read the doc on |max|. Your question is a math qu...

etwa 7 Jahre vor | 1

Beantwortet
How to solve an ODE with a function symbolically?
You could start with the existing doc on solving ODEs symbolically: * <https://www.mathworks.com/help/symbolic/solve-a-single...

etwa 7 Jahre vor | 0

Beantwortet
I want to take an Equation as input like ax^2+bx+c =0 , Now I want to take the co-efficient. What will be the code?
You could try the <http://www.mathworks.com/help/symbolic/coeffs.html?s_cid=ans2doc_man_link coeffs> command. Note that coeffs a...

etwa 7 Jahre vor | 0

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Attribution de licence disponible et modification de type de licence
Vous trouverez sur ce site <http://fr.mathworks.com/company/aboutus/contact_us/?s_cid=ans2doc_man_link http://fr.mathworks.com/c...

etwa 7 Jahre vor | 0

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how to combine symbolics and if statement?
Piecewise is available starting 16b: <http://www.mathworks.com/help/symbolic/piecewise.html?s_cid=ans2doc_man_link http://www.ma...

etwa 7 Jahre vor | 2

Beantwortet
How to use the Marcum-Q function as a symbolic function for vpaintegral.
Why do you need a variable-precision integration of this function starting frome "x"? The error is because the marcumq functi...

etwa 7 Jahre vor | 1

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Help with symbolic toolbox
You do not need to declare "ess". And you don't use "ratio". So your first line is syms P S Z "assume" is not the right ...

etwa 7 Jahre vor | 1

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Beantwortet
Problem with ordinary differental equation
I think what you're asking is how to go from symbolic to numeric form? Use the "subs" function to substitute symbolic values wit...

etwa 7 Jahre vor | 0

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Beantwortet
I want to solve this implicit derivative
Use "dsolve" : <https://www.mathworks.com/help/symbolic/dsolve.html?s_cid=ans2doc_man_link https://www.mathworks.com/help/symbol...

etwa 7 Jahre vor | 0

Beantwortet
Solve Difference Equations symbolically
Use dsolve: <https://www.mathworks.com/help/symbolic/dsolve.html?s_cid=ans2doc_man_link https://www.mathworks.com/help/symbolic/...

etwa 7 Jahre vor | 0

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MAtlab symbolic toolbox and removal of Mupad interface
Starting R2017a, units are available in MATLAB via Symbolic Math Toolbox. See: <https://www.mathworks.com/help/symbolic/units...

etwa 7 Jahre vor | 0

Beantwortet
how to use MATLAB units ?
Starting R2017a, units are available in MATLAB via Symbolic Math Toolbox. See: <https://www.mathworks.com/help/symbolic/units...

etwa 7 Jahre vor | 1

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