Answered

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...

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...

2 years ago | 0

| accepted

Answered

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...

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...

2 years ago | 0

Answered

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/...

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/...

2 years ago | 0

Answered

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...

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...

2 years ago | 0

Answered

how to use MATLAB units ?

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

how to use MATLAB units ?

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

2 years ago | 1

| accepted

Answered

Why doesn't this code solve the equation?

Answered in <http://www.mathworks.com/matlabcentral/newsreader/view_thread/347804?s_cid=ans2doc_man_link http://www.mathworks.co...

Why doesn't this code solve the equation?

Answered in <http://www.mathworks.com/matlabcentral/newsreader/view_thread/347804?s_cid=ans2doc_man_link http://www.mathworks.co...

2 years ago | 0

Answered

Display a variable and its units

Units are now in MATLAB if you have Symbolic Math Toolbox. Try this, and see the tutorial: <https://www.mathworks.com/help/symbo...

Display a variable and its units

Units are now in MATLAB if you have Symbolic Math Toolbox. Try this, and see the tutorial: <https://www.mathworks.com/help/symbo...

2 years ago | 0

| accepted

Answered

How to add units to a number and differentiate between different inputs

Units are now in MATLAB if you have Symbolic Math Toolbox. Try this, and see the tutorial: <https://www.mathworks.com/help/symbo...

How to add units to a number and differentiate between different inputs

Units are now in MATLAB if you have Symbolic Math Toolbox. Try this, and see the tutorial: <https://www.mathworks.com/help/symbo...

2 years ago | 0

| accepted

Answered

how to set a unit to variable?

Units are now in MATLAB if you have Symbolic Math Toolbox. Try: >> u = symunit; >> x = 2*u.meter x = 2*[m] ...

how to set a unit to variable?

Units are now in MATLAB if you have Symbolic Math Toolbox. Try: >> u = symunit; >> x = 2*u.meter x = 2*[m] ...

2 years ago | 3

| accepted

Answered

Usage of roots and solve in MATLAB

1. To understand the difference between numeric and symbolic arithmetic, please see: <https://www.mathworks.com/help/symbolic/ch...

Usage of roots and solve in MATLAB

1. To understand the difference between numeric and symbolic arithmetic, please see: <https://www.mathworks.com/help/symbolic/ch...

2 years ago | 1

| accepted

Answered

Jacobian of equation with left and right hand sides

Starting R2017a, The "lhs" and "rhs" functions are available. See: <https://www.mathworks.com/help/symbolic/lhs.html?s_cid=an...

Jacobian of equation with left and right hand sides

Starting R2017a, The "lhs" and "rhs" functions are available. See: <https://www.mathworks.com/help/symbolic/lhs.html?s_cid=an...

2 years ago | 0

Answered

How to arrange equation variable on right and left hand side?

Starting R2017a, use the "isolate" function: <https://www.mathworks.com/help/symbolic/isolate.html?s_cid=ans2doc_man_link https:...

How to arrange equation variable on right and left hand side?

Starting R2017a, use the "isolate" function: <https://www.mathworks.com/help/symbolic/isolate.html?s_cid=ans2doc_man_link https:...

2 years ago | 2

Answered

How to plot the symbolic expression given by "root"

If I understand correctly, you're asking " _How can I automatically substitute values into a symbolic expression?_". Use the sub...

How to plot the symbolic expression given by "root"

If I understand correctly, you're asking " _How can I automatically substitute values into a symbolic expression?_". Use the sub...

2 years ago | 0

Answered

Error using integral: A and B must be floating-point scalars

To represent integration with symbolic variables, use "int" instead of "integral". <https://www.mathworks.com/help/symbolic/i...

Error using integral: A and B must be floating-point scalars

To represent integration with symbolic variables, use "int" instead of "integral". <https://www.mathworks.com/help/symbolic/i...

2 years ago | 0

Answered

Create a general function or script, where the user can specify the number of variables, which is both symbolic and possible to evaluate with fminunc?

* To use fminunc, first convert the Symbolic function to a MATLAB function using <https://www.mathworks.com/help/symbolic/matlab...

Create a general function or script, where the user can specify the number of variables, which is both symbolic and possible to evaluate with fminunc?

* To use fminunc, first convert the Symbolic function to a MATLAB function using <https://www.mathworks.com/help/symbolic/matlab...

2 years ago | 0

Answered

Help with piecewise function? Can't use else/if?

If you have R2016b, you can just use the piecewise function: <https://www.mathworks.com/help/symbolic/piecewise.html?s_cid=ans2d...

Help with piecewise function? Can't use else/if?

If you have R2016b, you can just use the piecewise function: <https://www.mathworks.com/help/symbolic/piecewise.html?s_cid=ans2d...

2 years ago | 0

| accepted

Answered

How to define ranges for solutions in this example

To specify ranges for multiple variables, see the last example on <https://www.mathworks.com/help/symbolic/solve-equations-numer...

How to define ranges for solutions in this example

To specify ranges for multiple variables, see the last example on <https://www.mathworks.com/help/symbolic/solve-equations-numer...

2 years ago | 1

| accepted

Answered

help to fix this numeric symbolic array

You can't have a "numeric symbolic" array because "numeric" and "symbolic" are different data types. For your options, see <http...

help to fix this numeric symbolic array

You can't have a "numeric symbolic" array because "numeric" and "symbolic" are different data types. For your options, see <http...

2 years ago | 0

Answered

Error using FEVAL Produced on an Attempt at calling fplot

First, a side note that you should format code in your posts: <https://www.mathworks.com/matlabcentral/answers/13205-tutorial-ho...

Error using FEVAL Produced on an Attempt at calling fplot

First, a side note that you should format code in your posts: <https://www.mathworks.com/matlabcentral/answers/13205-tutorial-ho...

2 years ago | 1

| accepted

Answered

How to convert strings to symbolic expressions without sym()?

Why do you need to convert strings to symbolic expressions? EDIT: Starting R2017b, use <https://www.mathworks.com/help/symbolic/...

How to convert strings to symbolic expressions without sym()?

Why do you need to convert strings to symbolic expressions? EDIT: Starting R2017b, use <https://www.mathworks.com/help/symbolic/...

2 years ago | 1

Answered

How do I convert a string input to an executable equation?

For symbolic equations, starting R2017b, use <https://www.mathworks.com/help/symbolic/str2sym.html?s_cid=ans2doc_man_link str2sy...

How do I convert a string input to an executable equation?

For symbolic equations, starting R2017b, use <https://www.mathworks.com/help/symbolic/str2sym.html?s_cid=ans2doc_man_link str2sy...

2 years ago | 0

Answered

How can I compute Jacobi Elliptic Functions in Matlab where the modulus is > 1?

Starting R2017b, all Jacobi Elliptic functions in MATLAB with Symbolic Math Toolbox. Example: >> jacobiCD(1,3) ans = ...

How can I compute Jacobi Elliptic Functions in Matlab where the modulus is > 1?

Starting R2017b, all Jacobi Elliptic functions in MATLAB with Symbolic Math Toolbox. Example: >> jacobiCD(1,3) ans = ...

2 years ago | 0

| accepted

Answered

How to calculate imaginary part of incomplete gamma function in matlab.

You can find "gammainc" for imaginary input values using the Symbolic "igamma" function. Carefully read the note in the "Descrip...

How to calculate imaginary part of incomplete gamma function in matlab.

You can find "gammainc" for imaginary input values using the Symbolic "igamma" function. Carefully read the note in the "Descrip...

2 years ago | 1

| accepted

Answered

symbolic evaluation where function is obtained from user input text

Starting R2017b, use <https://www.mathworks.com/help/symbolic/str2sym.html?s_cid=ans2doc_man_link str2sym>. >> prompt = 'in...

symbolic evaluation where function is obtained from user input text

Starting R2017b, use <https://www.mathworks.com/help/symbolic/str2sym.html?s_cid=ans2doc_man_link str2sym>. >> prompt = 'in...

2 years ago | 1

| accepted

Answered

Matlab Numerical integral improvement

Updated answer for R2017b. Use <https://www.mathworks.com/help/symbolic/int.html?s_cid=ans2doc_man_link int> and convert the sym...

Matlab Numerical integral improvement

Updated answer for R2017b. Use <https://www.mathworks.com/help/symbolic/int.html?s_cid=ans2doc_man_link int> and convert the sym...

2 years ago | 1

| accepted

Answered

Numerical values of integrals

Use "vpaintegral" introduced in 16b: <https://www.mathworks.com/help/symbolic/vpaintegral.html?s_cid=ans2doc_man_link https://ww...

Numerical values of integrals

Use "vpaintegral" introduced in 16b: <https://www.mathworks.com/help/symbolic/vpaintegral.html?s_cid=ans2doc_man_link https://ww...

2 years ago | 2

Answered

symb toolbox newby?

Please start with the Symbolic Getting Started: <https://www.mathworks.com/help/symbolic/getting-started-with-symbolic-math-tool...

symb toolbox newby?

Please start with the Symbolic Getting Started: <https://www.mathworks.com/help/symbolic/getting-started-with-symbolic-math-tool...

2 years ago | 0

Answered

Symbolic math solve numeric approximation

Question: When does the Symbolic Math "solve" statement try to find a numeric approximation? "solve" tries to find a symbolic...

Symbolic math solve numeric approximation

Question: When does the Symbolic Math "solve" statement try to find a numeric approximation? "solve" tries to find a symbolic...

2 years ago | 0

Answered

How to combine numerator and denominator in original form

The answer is in this example on the sym doc page: <https://www.mathworks.com/help/symbolic/sym.html#bu7u7ur-6?s_cid=ans2doc_man...

How to combine numerator and denominator in original form

The answer is in this example on the sym doc page: <https://www.mathworks.com/help/symbolic/sym.html#bu7u7ur-6?s_cid=ans2doc_man...

2 years ago | 0

| accepted

Answered

How can I take the f(y)th-order derivative of another function?

Use |.*| instead of |*| , and for the why, look up those operators or simply search for your error |Inner matrix dimensions must...

How can I take the f(y)th-order derivative of another function?

Use |.*| instead of |*| , and for the why, look up those operators or simply search for your error |Inner matrix dimensions must...

2 years ago | 0