Question

Cannot call or index into a temporary array error message

I am trying to access the elements of a 1 by 2 variable that is defined by a function handle, p2r, but when I define a separate ...

4 månader ago | 0 answers | 0

Question

Solving a system of equations involving complex numbers

The following code outputs a value for a and b with respect to the imaginary number i but the output is not fully simplified wit...

4 månader ago | 1 answer | 0

Question

Simplifying solution to algebraic system of equations

The following code outputs a value for a and b with respect to the imaginary number i but the output is not fully simplified wit...

4 månader ago | 1 answer | 0

Question

Solving a symbolic equation in one or more variables

When the following code is executed, the output is ans = Empty sym: 0-by-1 although b = i = yp = [1 90] I get the same re...

4 månader ago | 2 answers | 0

Question

Defining a symbol to perform a specified operation

Is there a way, for example, given two numbers a and b I can either use a function or define a symbol, say %, such that a%b = (a...

4 månader ago | 1 answer | 0

Question

Phasor representation of complex numbers

Instead of typing (3+4i)*(i), how can I multiply two complex numbers in phasor form, in this case (5∠(arctan(4/3))*(∠90), and ...

4 månader ago | 1 answer | 0

Question

Changing where divisions appear on a Matlab plot

The following code generates a plot in which the scale divisions appear at the edges of the plot but they do not coincide with t...

4 månader ago | 1 answer | 0

Question

Improving readability of Matlab graph

The plot generated by the following code appears with the ticks labelled 1 to 25 for the x axis and 0 to 20 for the y axis. I wa...

4 månader ago | 2 answers | 0

Question

Unexpected output when trying to plot the solution to a system of nonlinear differential equations

The following Matlab code is meant to plot x(1) vs time and x(2) vs time separately, but only plots x(1) vs time. Despite there ...

4 månader ago | 1 answer | 0

Question

Plotting the solution to a system of second order differential equations

I am having difficulty interpreting the plots generated by the following code. Is there a way I can generate a single plot inste...

4 månader ago | 1 answer | 0

Question

Plotting angular position versus horizontal position of a composite body and labeling specific points

I am trying to graph the solution to a system of differential equations. The following code graphs four functions, but they are ...

4 månader ago | 0 answers | 0

Question

Adding a redundant equation to a system of algebraic equation that generates inconsistent output

In a dynamics problem I am working on, two different systems of equation that describe the motion of a body are both correct and...

4 månader ago | 0 answers | 0

Question

Simplified solution to system of algebraic equations

The following code solves the system of equations for x, but the solution could be further simplified, for example, by factoring...

4 månader ago | 1 answer | 0

Question

Symbolic solution to a system of algebraic equations

I get an error message stating "Reference to non existent field b" when I try to solve for b in the following system of algebrai...

4 månader ago | 1 answer | 0

Question

Symbolic solution to a system of equations

Can Matlab solve a system of equations like a+b=c, b=2c symbolically for b and c? The output should be c=-a, b=-2a

4 månader ago | 2 answers | 0

Question

Symbolically Solving a multi-variable system of three equations for three variables

How can I find symbolic solutions for a,b, and c expressing them with respect to the other variables using the system of equatio...

4 månader ago | 1 answer | 0

Question

Solving a system of second order differential equations

I get the following error message when I run the code below (although this error does not always occur; sometimes the plot is ge...

4 månader ago | 1 answer | 0

Question

Finding the closed form solution to a system of second order differential equations

I am trying to find the closed form solution to a system of differential equations but I am unsure how to access the closed form...

5 månader ago | 1 answer | 0

Question

Finding the solution to system of Differential equations

I am trying to graph the solution to the following system of differential equations and finding the closed form solution using f...

5 månader ago | 0 answers | 0

Question

Graphing and finding the closed form solution to a system of differential equations

I am trying to graph the solution to the following system of differential equations and finding the closed form solution using f...

5 månader ago | 1 answer | 0

Question

Describing the motion of a composite body using system of differential equations

I am trying to solve a system of differential equations analytically using the following code, but although they correctly descr...

5 månader ago | 1 answer | 0

Question

Describing the motion of a composite body using system of second order differential equations

I am trying to graph the solution to the following system of differential equations. t''= t'^2(tan(t)) - x''(4sec(t)) t'^2 (...

5 månader ago | 1 answer | 0

Question

System of Second order order differential Equations referencing the 0th derivative

The following code refers to the system of differential equations in which only the first and second derivatives are included....

5 månader ago | 1 answer | 0

Question

System of nonlinear equations

I have tried the following code to solve a system of nonlinear equations, but it does not return the correct result which can be...

6 månader ago | 1 answer | 0

Question

Plot function to graph differential equations

I am trying to plot the solution to the following system but the code below plots a small circle instead of a parabola, which is...

6 månader ago | 1 answer | 0

Question

Closed form solution of a system of nonlinear differential equations

The following code graphs the solution to a a system of nonlinear differential equations. How can I find the closed form solutio...

6 månader ago | 0 answers | 0

Question

System of nonlinear differential equations

I modified the code from this page: https://www.mathworks.com/matlabcentral/answers/384298-how-to-solve-and-plot-system-of-nonli...

6 månader ago | 1 answer | 0

Question

Infinite recursion in code to graph second order differential equations

I am trying to implement the sample code from a section titled Pass Extra Parameters to ODE Function in an article on second ord...

6 månader ago | 1 answer | 0

Question

Graphing the solution to a system of differential equations describing the parabolic trajectory of an object acted on by drag force

How can I graph the solution to the following system of differential equations? Here is a link to an image of the equations: ht...

6 månader ago | 0 answers | 0

Question

Graphing second order differential equation

I am attemping to graph the solution to the following system of differential equations. mx¨ = −C*x*sqrt(x˙^2 + y˙^2) my¨ = ...

6 månader ago | 0 answers | 0