11,210 total contributions since 2012

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Answered

Creating a linear plot over a plot of giving numbers

Try this: plot (x1,y1,'p') hold on plot([0 20], 3+0.5*[0 20]) hold off It’s a linear function, so you only need the limits...

Creating a linear plot over a plot of giving numbers

Try this: plot (x1,y1,'p') hold on plot([0 20], 3+0.5*[0 20]) hold off It’s a linear function, so you only need the limits...

3 hours ago | 0

Answered

how to solve laplace transform problem in matlab

We do not know what you did to solve this. (Always post what you’ve already attempted.) However, if you got frustrated, that i...

how to solve laplace transform problem in matlab

We do not know what you did to solve this. (Always post what you’ve already attempted.) However, if you got frustrated, that i...

3 hours ago | 0

Answered

Writeing a stings using Matlab 2015

The standard output (The Command Window) has a file identification number = 1. So: fprintf(fid, 'Hello\nWorld\n') will pr...

Writeing a stings using Matlab 2015

The standard output (The Command Window) has a file identification number = 1. So: fprintf(fid, 'Hello\nWorld\n') will pr...

5 hours ago | 0

Answered

Step Fucntion in Matlab

Since the unit step functrion is defined as being equal to 1 for , I would use: Ustp0 = @(t) (t >= 0); Ustp1 = @(t) 0.5*(t =...

Step Fucntion in Matlab

Since the unit step functrion is defined as being equal to 1 for , I would use: Ustp0 = @(t) (t >= 0); Ustp1 = @(t) 0.5*(t =...

5 hours ago | 0

Answered

How can I subs 2 symbolic vectors in 1 comand?

You defined ‘Z’ to require 4 different arguments, so the substitution has to match them, either using subs or using ‘Z’ as a fun...

How can I subs 2 symbolic vectors in 1 comand?

You defined ‘Z’ to require 4 different arguments, so the substitution has to match them, either using subs or using ‘Z’ as a fun...

6 hours ago | 0

| accepted

Answered

Bathymetric data into a surface plot

Try this: [D,S] = xlsread('Bathymetric data (XYZ).xlsx'); Lon = D(:,1); Lat = D(:,2); Dep = D(:,3); figure plot3(Lon, L...

Bathymetric data into a surface plot

Try this: [D,S] = xlsread('Bathymetric data (XYZ).xlsx'); Lon = D(:,1); Lat = D(:,2); Dep = D(:,3); figure plot3(Lon, L...

8 hours ago | 0

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Answered

When I run the program inaccurate results appear What is the problem?

The best approach to this is likely not the vpasolve function, since it takes forever. I have no idea of these are the ‘accur...

When I run the program inaccurate results appear What is the problem?

The best approach to this is likely not the vpasolve function, since it takes forever. I have no idea of these are the ‘accur...

9 hours ago | 0

| accepted

Answered

About MATLAB R2018B update

I installed the R2018b Update3 yesterday and when I checked just now, it said that I was running the latest update. I suggest...

About MATLAB R2018B update

I installed the R2018b Update3 yesterday and when I checked just now, it said that I was running the latest update. I suggest...

10 hours ago | 0

Answered

How I can Plots this function

Another approach: x = @(t) 3*exp(-2*t) .* (t >= 0); t = linspace(-10,10); figure plot(t, x(t))

How I can Plots this function

Another approach: x = @(t) 3*exp(-2*t) .* (t >= 0); t = linspace(-10,10); figure plot(t, x(t))

11 hours ago | 0

Answered

How to keep a patch object and its rotation in the same plot

Try this: x = [1 2 2 1]; y = [1 1 2 2]; figure bot = patch(x,y,'blue'); rotate(bot, [0 0 1], 45) hold on patch(x,y,'bl...

How to keep a patch object and its rotation in the same plot

Try this: x = [1 2 2 1]; y = [1 1 2 2]; figure bot = patch(x,y,'blue'); rotate(bot, [0 0 1], 45) hold on patch(x,y,'bl...

23 hours ago | 0

| accepted

Answered

ellip is missing from Matlab

It you aree certain that you have it licensed and installed, you may have path problems. Run these lines (from a script or yo...

ellip is missing from Matlab

It you aree certain that you have it licensed and installed, you may have path problems. Run these lines (from a script or yo...

1 day ago | 0

Answered

For-if loop not working?

Lose the loop! Try this: A=[2 5 4 13 4 23 8 3 9 5 0]; [Maxima,MaxIdx]=findpeaks(A) Maximav = Maxima(Maxima > 10); Ma...

For-if loop not working?

Lose the loop! Try this: A=[2 5 4 13 4 23 8 3 9 5 0]; [Maxima,MaxIdx]=findpeaks(A) Maximav = Maxima(Maxima > 10); Ma...

1 day ago | 0

Answered

How to fit Phase type distribution to empirical data

It may be possible, although you would have to create your own distribution function. See the documentation on Probability Dis...

How to fit Phase type distribution to empirical data

It may be possible, although you would have to create your own distribution function. See the documentation on Probability Dis...

1 day ago | 0

Answered

How to use trapz for histogram?

Try this: a=[1,3,3,2,1,3,8,8,9,0,6,5,15,4,14,3,2,1,2,14]; aa = histogram(a,'Normalization','probability'); edgs = aa.BinEdge...

How to use trapz for histogram?

Try this: a=[1,3,3,2,1,3,8,8,9,0,6,5,15,4,14,3,2,1,2,14]; aa = histogram(a,'Normalization','probability'); edgs = aa.BinEdge...

1 day ago | 0

Answered

plot integral equation coming from ode solver

Use the trapz (link) function: idx = find(t1 <= 0.42); final = trapz(t1(idx), Aout1(idx)) Since you menitoned cumsum, also s...

plot integral equation coming from ode solver

Use the trapz (link) function: idx = find(t1 <= 0.42); final = trapz(t1(idx), Aout1(idx)) Since you menitoned cumsum, also s...

1 day ago | 0

Answered

what type of plot is this?

See the documentation on the surf, axis, shading, view, and colormap functions.

what type of plot is this?

See the documentation on the surf, axis, shading, view, and colormap functions.

1 day ago | 0

Answered

Get all vectors with possible values of each elements

There are a number of funcitons you can use to optimise your funciton. See the documentation on Nonlinear Optimization (link) f...

Get all vectors with possible values of each elements

There are a number of funcitons you can use to optimise your funciton. See the documentation on Nonlinear Optimization (link) f...

1 day ago | 0

Answered

How to remove the extra symbols in a box figure?

The red + symbols are ouitliers. You cannot eliminate them, however if you set their colours to white, you can make them effect...

How to remove the extra symbols in a box figure?

The red + symbols are ouitliers. You cannot eliminate them, however if you set their colours to white, you can make them effect...

1 day ago | 0

| accepted

Answered

How to find rearrange these values in a new row and column?

One approach: A = [1 2 2 3 3 4 ...

How to find rearrange these values in a new row and column?

One approach: A = [1 2 2 3 3 4 ...

2 days ago | 0

| accepted

Answered

help plot the inequality

Straightforward: syms a b X Z assume(X > 0) assume(Z > 0) It does not appear to have any effect on the rest of your posted...

help plot the inequality

Straightforward: syms a b X Z assume(X > 0) assume(Z > 0) It does not appear to have any effect on the rest of your posted...

2 days ago | 0

Answered

Solve nonlinear equation with different parameters

Do something like this (although with the correct values for the constants): A = 13; B = 5; C = 7; D = 3; F = 11; V = 42;...

Solve nonlinear equation with different parameters

Do something like this (although with the correct values for the constants): A = 13; B = 5; C = 7; D = 3; F = 11; V = 42;...

2 days ago | 0

Answered

Subplots with axes of same scale but different lengths

I am not certain what you are asking. If you want all the subplots to have the same axis limits, use the axis (link) function. ...

Subplots with axes of same scale but different lengths

I am not certain what you are asking. If you want all the subplots to have the same axis limits, use the axis (link) function. ...

2 days ago | 1

| accepted

Answered

What is wrong with my use of ode45?

There were a few problems in your code that I fixed. First, be very careful creating matrices such as you did in ‘odefcn’ bec...

What is wrong with my use of ode45?

There were a few problems in your code that I fixed. First, be very careful creating matrices such as you did in ‘odefcn’ bec...

2 days ago | 1

| accepted

Answered

divide data according to year, month, day

See if the findgroups (link) function (introduced in R2015b) will do what you want.

divide data according to year, month, day

See if the findgroups (link) function (introduced in R2015b) will do what you want.

2 days ago | 0

Answered

How can I split up several numbers in one cell from an excel file?

I am not exactly certain what you want. One option would be the mat2cell (link) function. Each column would be its own cell,...

How can I split up several numbers in one cell from an excel file?

I am not exactly certain what you want. One option would be the mat2cell (link) function. Each column would be its own cell,...

2 days ago | 0

| accepted

Answered

How to make polynom with unknown coefficients?

You need the poly2sym (link) function as well: syms a b c x p = poly2sym([a b c],x) producing: p = a*x^2 + b*x + c

How to make polynom with unknown coefficients?

You need the poly2sym (link) function as well: syms a b c x p = poly2sym([a b c],x) producing: p = a*x^2 + b*x + c

2 days ago | 0

Answered

For Loop is only running once

Your loop is fine, although you’re not using it in your calculations because none of your variables are subscripted, at least th...

For Loop is only running once

Your loop is fine, although you’re not using it in your calculations because none of your variables are subscripted, at least th...

3 days ago | 0

Answered

How to find a slope of signal if we do not know the value of x1, x2, y1, y2

I am not certain what you intend by ‘slope of a signal’. You can easily determine the derivatives of the signal with the gradie...

How to find a slope of signal if we do not know the value of x1, x2, y1, y2

I am not certain what you intend by ‘slope of a signal’. You can easily determine the derivatives of the signal with the gradie...

3 days ago | 0

Answered

comparing point coordination with line

One approach: y1 = @(x) -0.3*x + 4.4; y2 = @(x) 3*x - 22; pt = [10, -10]; Difference = [y1(pt(1))-pt(2); y2(pt(1))-pt(2)] ...

comparing point coordination with line

One approach: y1 = @(x) -0.3*x + 4.4; y2 = @(x) 3*x - 22; pt = [10, -10]; Difference = [y1(pt(1))-pt(2); y2(pt(1))-pt(2)] ...

3 days ago | 0

| accepted