**Statistics**

**MATLAB Answers**

**0** Questions

**1,266** Answers

RANK**57**

of 292,989

REPUTATION**3,316**

CONTRIBUTIONS

**0** Questions

**1,266** Answers

ANSWER ACCEPTANCE **
0.00%
**

VOTES RECEIVED**348**

RANK

of 19,991

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

RANK

of 148,308

CONTRIBUTIONS

**0** Problems

**0** Solutions

SCORE**0**

NUMBER OF BADGES**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Feeds**

Implementation of the analytical expression for the magnetic field of a circular current loop and interpretation/representation of the results

When I run it I get different signs as well as slightly different magnitudes: %% Analytical calculation of the magnetic field o...

1 day ago | 0

How to remove gaps in timeseries plot to have a continuous graph

Include a NaN in the data list between each data set.

4 days ago | 0

what the reason behind roundoff error inside while loop

Compare the following dt = 0.1*16^-1; t = 0; while t<1 t = t+dt; end disp(t) t = 0; c = 1; while t<1 t = c...

12 days ago | 0

Something doesn't work for me in fit

Here's a fit using fminsearch (I just used a quick but coarse approach- the code can be made much cleaner!). v=[10 30 5...

17 days ago | 0

Plotting while skipping the middle point in a vector

Something like this? tic v1 = [1 2 3 4 5 8 9 10 20 21 22 30 31 32]; dv = diff(v1); ix = find(abs(dv)>1); v = []; s2 = 0; f...

1 month ago | 1

| accepted

help with nested loop and plot

Here's another way, still using nested loops: n= 101; x = linspace(-100, 100, n); y = linspace(-100, 100, n); [X, Y] = meshg...

1 month ago | 0

| accepted

How to integrate an implicit acceleration function to a fitting pair of graphs of velocity and displacement

Look up ode45 for the integration (for a fixed set of parameters) and fminsearch for fitting the parameters to known data.

2 months ago | 0

Brush: How can I change the font color of the displayed X and Y range?

Select the Property Inspector, select the text, choose a color. (The following code is just to get the image uploaded) I=imrea...

2 months ago | 0

how to use an integral function inside a for loop? i need to find the value of function that chages as i chages .then using this values i need to find another integral.

Are you looking for something like this? r0 =0.1; u =[1:7]'; Q =zeros(length(u),1); E =zeros(length(Q),1); Q = @(x)0.023*(r...

2 months ago | 0

Simpson integral - problem with writing the formula

Should be x(i) etc. not a(i). Also be careful with brackets. % Test 1 a = 0; b = 1; n = 10; f = @(x)1-x+x.^3; I = simpson(f...

2 months ago | 0

How do I apply iteration method to an integral?

Look up help on function fzero.

3 months ago | 1

| accepted

How can I plot a reflection angle of a projectile in a kinematics model? Overlay projectile motion plots?

Surely you only need to reverse the x-velocity? imperialBallVelocity = 52.20; release_angle = 42; release_height = 64.2; %Ki...

3 months ago | 0

Why am I receiving this error?

You have 4 layers layer_angles = [45, -45, -45, 45]; but data for only three mid_plane_strains = [0.05, 0.00, 0.00]; % Mid-p...

4 months ago | 0

Function g Returns Only 2 Values Instead of Array - Vectorized Operation Issue in MATLAB

You have g as a function of x2, but x2 doesn't appear on the right-hand side!

4 months ago | 0

| accepted

Solve for x with given equation

Look up the help on function fzero. And don't forget that Matlab doesn't recognise implicit multiplication. x(...) should...

4 months ago | 0

power method with rayleigh coeff

Make sure you call the function with the arguments in the same order as those defined in the function! A=[4 1 -1 0;1 3 -1 0;-1 ...

4 months ago | 0

| accepted

Fill area between two vertical curves

Like this: value = [186.7646 198.4115 191.1406 180.8430 175.7136 ... 167.7459 151.2865 144.5964 139.8148 139.4305 188.2865 204...

4 months ago | 2

| accepted

Simplificar el resultado como valor numerico

Why not simply: p1=[2;3] ; x0_1=@(theta) [cos(theta); sin(theta)]; % =[x1*x0; x1*y0] y0_1=@(theta)[-sin(theta); cos(theta)];...

5 months ago | 1

Optimizing code for HAC Weight matrix generation - How to be faster?

Try replacing the loops with something like this: i = (1:size(Weight_correlation,1))'; j = 1:size(Weight_correlation,2); c = ...

5 months ago | 0

How to a create a label at the bottom of a vertical line?

Like this? x = linspace(0,6,100); y = exp(x); plot(x,y) xline(4.5,'-',{'Acceptable','Limit'}, 'LabelVerticalAlignment', 'bot...

5 months ago | 0

| accepted

Secant method Nan Error

You haven't updated error in your while loop. Try including something like error = abs(X0-X1);

5 months ago | 0

| accepted

Function error in ODEs RK4 method, solving 6 unknowns

It works for me (I've commented out the fprint statements in the code below - but it works with them in!): global CDin psi thet...

5 months ago | 0

| accepted

I keep getting the error using '/'.

Try mu_ratio=(1-(vol_frac(c,1)/0.605).*((particle_ratio(c,1)).^1.2)).^(-1.5125); Notice the dots! .* .^ Difficult to be...

5 months ago | 0

Plateau followed by one phase decay

Like this? x = 0:0.5:20; % time in seconds Y0 = -0.6; % signal baseline value Plateau = -1; % singnal plateu after trigger/st...

5 months ago | 1

Radiation view factor using Monte Carlo

I think you probably need cos(theta), rather than theta, to be linearly spaced.

6 months ago | 0

How to fix a syntax in the oscillator's plot code?

Like this (both x_1 and x_2 are contained in y) T0 = 10; omega0 = 1; M = 1; F = 1; x_1 = 0; x_2 = 0; x_0 = [x_1 x_2]; ts...

6 months ago | 0

| accepted

ODE45has long runtime and graph will not plot

Here's my attempt to make sense of your equations tauspan = 0:100:10000; % p0 = [0.5 0.5 0 0]; % dp1dt = -rf + rr % dp2...

6 months ago | 0

Two graphs in the same plot, why?

Something like this data = xlsread('sunHoursInTrollhattan.xlsx'); mins = data(:,1)*60 + data(:,2); plot(1:12, mins,'o'),grid ...

6 months ago | 0

| accepted

Two graphs in the same plot, why?

You have the hours as one plot and the minutes as the other! Turn the data into all minutes, or all hours first.

6 months ago | 0

Could anyone help me in fixing the problem in my code for solving the initial value problem numerically: y'=y^2, y(0)=1?

Here's an attempt using fminsearch. I don't know anything about the Obreschkoff method, so couldn't say if your equations are...

6 months ago | 0

| accepted