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Answered

matlab single quote problem

Put the string in square brackets: pi_v = ['The approximation on ' num2str(n) ' terms is ' num2str(round(pi*4,4))] or more ef...

matlab single quote problem

Put the string in square brackets: pi_v = ['The approximation on ' num2str(n) ' terms is ' num2str(round(pi*4,4))] or more ef...

19 minuten ago | 0

Answered

How to solve an ODE system with time-dependent variables in MATLAB?

One method of doing that is in ODE with Time-Dependent Terms using linear interpolation. However to do that you would have to p...

How to solve an ODE system with time-dependent variables in MATLAB?

One method of doing that is in ODE with Time-Dependent Terms using linear interpolation. However to do that you would have to p...

ongeveer 4 uur ago | 0

Answered

Matlab error "Matrix dimensions must agree"

Integrating an array, set 'ArrayValued' to 'true': By = pz .* BiotSavart .* integral(fy,0,2*pi, 'ArrayValued',1); Bz = BiotSa...

Matlab error "Matrix dimensions must agree"

Integrating an array, set 'ArrayValued' to 'true': By = pz .* BiotSavart .* integral(fy,0,2*pi, 'ArrayValued',1); Bz = BiotSa...

ongeveer 16 uur ago | 0

| accepted

Answered

How can i filter data using time frames?

It is necessary to omit the last column (‘eor’) since it is not numeric, so taking the mean of it is inappropriate. Since you...

How can i filter data using time frames?

It is necessary to omit the last column (‘eor’) since it is not numeric, so taking the mean of it is inappropriate. Since you...

ongeveer 18 uur ago | 0

Answered

Motion Tracking with Accelerometer

The cumtrapz results do not appear to be accumulating with respect to time. Without being able to see the data or your code, my...

Motion Tracking with Accelerometer

The cumtrapz results do not appear to be accumulating with respect to time. Without being able to see the data or your code, my...

1 dag ago | 0

Answered

ODE45 How to use atmosisa function with Height function as Input?

‘but when I put in as z(2) as input, it gives error’ That is most likely because you do not pass it as an argument to your ‘d...

ODE45 How to use atmosisa function with Height function as Input?

‘but when I put in as z(2) as input, it gives error’ That is most likely because you do not pass it as an argument to your ‘d...

1 dag ago | 0

Answered

Broken link: Count Steps Using MPU9250 Sensor of BeagleboneBlue Hardware

I’m not certain how you’ve attempted to get that documentation. A DuckDuckGo search finds: Counting Steps using BeagleBone Blue...

Broken link: Count Steps Using MPU9250 Sensor of BeagleboneBlue Hardware

I’m not certain how you’ve attempted to get that documentation. A DuckDuckGo search finds: Counting Steps using BeagleBone Blue...

1 dag ago | 0

Answered

solve vs. fsolve

Give fsolve different starting points, one positive and one negative: eqn1 = @(x) x.^2 - 4; for k = 1:2 a2(k) = fsolve(e...

solve vs. fsolve

Give fsolve different starting points, one positive and one negative: eqn1 = @(x) x.^2 - 4; for k = 1:2 a2(k) = fsolve(e...

1 dag ago | 0

Answered

Reordering column so the values match an already reordered column

I am not certain what you want to do. Note that the sort function has two outputs, the first being the sorted values and the ...

Reordering column so the values match an already reordered column

I am not certain what you want to do. Note that the sort function has two outputs, the first being the sorted values and the ...

1 dag ago | 1

| accepted

Answered

Time in seconds ode45

Create the ‘tspan’ argument as a vector of more than two elements: tspan = 0 : 0.1 : 10; .

Time in seconds ode45

Create the ‘tspan’ argument as a vector of more than two elements: tspan = 0 : 0.1 : 10; .

2 dagen ago | 0

| accepted

Answered

Updating the parameter of ODE45

Actually, ‘f’ needs to be a (2x1) matrix, since there are two values of ‘x’, and they both need to be defined, so something like...

Updating the parameter of ODE45

Actually, ‘f’ needs to be a (2x1) matrix, since there are two values of ‘x’, and they both need to be defined, so something like...

2 dagen ago | 0

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Answered

How to make rectangular train?

See if the pulstran function will do what you want.

How to make rectangular train?

See if the pulstran function will do what you want.

3 dagen ago | 0

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Answered

How to do a surface plot with tangent plane?

I believe the problem is that you need to vectorise the function, using element-wise operations in the multiplications and divi...

How to do a surface plot with tangent plane?

I believe the problem is that you need to vectorise the function, using element-wise operations in the multiplications and divi...

3 dagen ago | 0

| accepted

Answered

add text to value of a plot, part 2

That needs a different approach. Try this: x = 1:10 y = rand(1,10); figure plot(x, y) xt = get(gca, 'XTick'); xtklbl...

add text to value of a plot, part 2

That needs a different approach. Try this: x = 1:10 y = rand(1,10); figure plot(x, y) xt = get(gca, 'XTick'); xtklbl...

3 dagen ago | 0

| accepted

Answered

what is the error "must return a column vector."

The ODE function must return a column vector. I have no idea what ‘I’ is, however defining it as I do here, the code runs witho...

what is the error "must return a column vector."

The ODE function must return a column vector. I have no idea what ‘I’ is, however defining it as I do here, the code runs witho...

3 dagen ago | 0

Answered

add text to value of a plot

if you have R2016b or later, use the xtickformat function to do what you want. Example — x = 1:10 y = rand(1,10); figur...

add text to value of a plot

if you have R2016b or later, use the xtickformat function to do what you want. Example — x = 1:10 y = rand(1,10); figur...

3 dagen ago | 0

| accepted

Answered

Plotting multiple repetitions in one graph

See for example: Positioning a cutted signal from a ECK Signal since that EKG signal is reasonably close to the sort of signal y...

Plotting multiple repetitions in one graph

See for example: Positioning a cutted signal from a ECK Signal since that EKG signal is reasonably close to the sort of signal y...

3 dagen ago | 1

Answered

Problem with bsxfun and custom function

This runs without error: A = rand(4) B = randn(5) bsxfun(@na_div,A,B) function[out] = na_div(x,y); if isnan(x) & ~i...

Problem with bsxfun and custom function

This runs without error: A = rand(4) B = randn(5) bsxfun(@na_div,A,B) function[out] = na_div(x,y); if isnan(x) & ~i...

3 dagen ago | 0

| accepted

Answered

Local smoothing of peaks for a matrix

If you have R2018b or later, see if the rmoutliers function will do what you want.

Local smoothing of peaks for a matrix

If you have R2018b or later, see if the rmoutliers function will do what you want.

3 dagen ago | 0

| accepted

Answered

Help me undersandand Frequency Vector and index vector in fourier transform

That is my code, so I will do my best to explain it. The frequency vector ‘Fv’ here defines the frequencies for a one-sided F...

Help me undersandand Frequency Vector and index vector in fourier transform

That is my code, so I will do my best to explain it. The frequency vector ‘Fv’ here defines the frequencies for a one-sided F...

4 dagen ago | 0

| accepted

Answered

Why are the lines not showing up on my graphs?

You are only plotting one point (that being the last point) and it is not possible to plot lines with only one point. Try thi...

Why are the lines not showing up on my graphs?

You are only plotting one point (that being the last point) and it is not possible to plot lines with only one point. Try thi...

4 dagen ago | 1

| accepted

Answered

how to plot line with dots?

There are several options: x = 1:10; y = rand(1,10); subplot(3,1,1) plot(x, y, '-ok') title('Circles and Lines') subplo...

how to plot line with dots?

There are several options: x = 1:10; y = rand(1,10); subplot(3,1,1) plot(x, y, '-ok') title('Circles and Lines') subplo...

4 dagen ago | 0

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Answered

how can I present histogram as line plot

Set DisplayStyle to stairs.

how can I present histogram as line plot

Set DisplayStyle to stairs.

4 dagen ago | 0

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Answered

how to model kinetic reaction system

There are several examples on fitting differential equations to data in Answers. See: ODE and Data fitting and Parameter Estima...

how to model kinetic reaction system

There are several examples on fitting differential equations to data in Answers. See: ODE and Data fitting and Parameter Estima...

4 dagen ago | 0

Answered

Applying sgolay filter (derivatives) on data with variable Fs

Every signal processing technique that I am aware of (except the newly-introduced nufft function) requires uniformly-sampled sig...

Applying sgolay filter (derivatives) on data with variable Fs

Every signal processing technique that I am aware of (except the newly-introduced nufft function) requires uniformly-sampled sig...

4 dagen ago | 0

Answered

System of nonliner equations with symbolic variables

The code needs a few adjustments: syms lamT lamZ eqT = 10*lamT^13*lamZ^13 - 10/lamT^13 - 10*lamT^2*lamZ; eqZ = 10*lamT^13*l...

System of nonliner equations with symbolic variables

The code needs a few adjustments: syms lamT lamZ eqT = 10*lamT^13*lamZ^13 - 10/lamT^13 - 10*lamT^2*lamZ; eqZ = 10*lamT^13*l...

5 dagen ago | 0

| accepted

Answered

Is it possible to save a workspace when a program is paused without it ending the program?

Using the save function at appropriate places in the code will not cause the code to crash. See: How to save data from Geneti...

Is it possible to save a workspace when a program is paused without it ending the program?

Using the save function at appropriate places in the code will not cause the code to crash. See: How to save data from Geneti...

5 dagen ago | 0

Answered

'LSQCURVEFIT requires all values returned by functions to be of data type double' error

It took a bit of effort to figure out what you are doing, and get your code to run correctly, although it still needs for you to...

'LSQCURVEFIT requires all values returned by functions to be of data type double' error

It took a bit of effort to figure out what you are doing, and get your code to run correctly, although it still needs for you to...

5 dagen ago | 0

| accepted

Answered

How to plot a symbolic equation

Using piecewise (R2016b and later versions) may be an option.

How to plot a symbolic equation

Using piecewise (R2016b and later versions) may be an option.

5 dagen ago | 1

| accepted

Answered

summation of 2 Sine waves

It does show a straight line at zero. Look at the magnitude of the y-axis (±2E-15), and you will see that it is essentially plo...

summation of 2 Sine waves

It does show a straight line at zero. Look at the magnitude of the y-axis (±2E-15), and you will see that it is essentially plo...

6 dagen ago | 0

| accepted