# Bastian Arturo Romero Mardones

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**Content Feed**

How to ask use to enter values

An example of input. prompt = "Value "; H2 = input(prompt); CH4 = input(prompt); xTable = table(H2,CH4) xTable = ...

11 months ago | 0

A problem containing Interpolation

You must change: x=linspace(1,15,6); %%This line 6 equally spaced data points y=2*x-3*randn(1,length(x)); %%This line x2=lin...

11 months ago | 0

How do we take the inverse fourier transformof this image

Your image: img = imread('imagen','jpg'); h = ifft2(img); %inverse fourier transform imagesc(abs(h(:,:,1))); inverse fouri...

11 months ago | 0

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how to write special matrices

I think it is not very efficient, but works a = dec2bin(0:15); i = 1; while i<17 c = randi([0 1],1,4); if(a(i...

11 months ago | 0

Plot transfer function with exponential function

You need add inputdelay sets=tf(4,[1 4 4],'inputdelay',1) sets = 4 exp(-1*s) * ------------- ...

11 months ago | 1

Matrix dimensions must agree.

The arrays dimensions are differents Dn/W.*log(1+((Pr.*h)/sigma2)+(Texe)) %Is a 10x10 complex matrix If you use Tup(k) %You a...

11 months ago | 0

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2d matrix column plot

You can make a plot with comand plot(): x(:,1) = 0:pi/100:2*pi; x(:,2) = sin(x); plot(x(:,1),x(:,2)) more info: https://es...

11 months ago | 0

Change name of subplot into 2 for

You can try change: Muscle_Task=strcat('Muscle',num2str(mrkr),'Task',num2str(muscle),'.bmp'); to: Muscle_Task=['Muscle' num2s...

11 months ago | 0

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Need help with a riemann sum

Cambié un poco el código, pero casi nada. clearvars; a = 0; b = 2; n_rec = 100; delta_x = (b-a)/n_rec; x = 0:delta_x:2; %...

11 months ago | 0

Improfile changing colour of plot

You can try: %Example Mathwork I = imread('liftingbody.png'); x = [19 427 416 77]; y = [96 462 37 33]; [a,b,c] = improfile(...

11 months ago | 0

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I'm trying to take the integral with two variables being arrays and this error keeps popping up. I'm not sure if there is another way, or if im missing something. this is what i have put in the code.

I think the upper limit of integral cannot be a matrix. if you change Iy = int(dA*x^2,x,0,b) %b is array the code works sym...

11 months ago | 0

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Random selection from a pool of questions

I changed 2 lines and it works QandA={'what is 6x8? ', '48'; 'what is 12x12? ', '144'; 'what is 60/12? ', '5'; ...

11 months ago | 1

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y=a*b^x

For example if your y = a*cos(x), you can use plot like this: x = 0:1e-2:20; %x values a = 2; %can be anything constant number...

11 months ago | 0

Why is my functions not plotting a line?

you need add one point Wab=9.42; d=0.12; s=0.1; % 0.3, 0.6 & 0.9 theta=0:0.1:6.28 Wcd=(s.*Wab.*(s+sin(theta)))./(1+s.^2+2...

11 months ago | 2

How can I stop my program and ask for the wish operation?

You can use a if umi = '1 = A*B 2 = A/B '; opc = input(umi); %input (multiply or divide?) disp(' ') dis...

11 months ago | 0

how can I plot multiple y values for single x value?

you can try creating a vector of ones and multiplying this by your x values, for example: y = rand(1,15); xvalue = 3; x = xva...

11 months ago | 0

Matlab program to plot y(t) graph

If you function is y(t), and you iterate this function in the time, your can plot it: time = 0:0.01:1; y = sin(time) %Your y(t...

11 months ago | 0

High Frequency Square Wave

You can try with square() --> More Info For example: time = linspace(0,1,1000); frecuency = 5; %or other frecuency x = squar...

11 months ago | 0

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Storing data in matlab matrix using loop

You can try use cell() i=1; for k1=2:1:20 for k2=2:1:20 for k3 = 2:1:20 M = [k1,k2,k3]; if...

11 months ago | 0

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Solve equation in interval

You can try: syms x f = x^2*exp(-x) fder = diff(f,x,1) vpasolve(fder,[-1 1]) %change solve

11 months ago | 0

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Calculation of two less than equal

For the left side it is: n = sqrt(C-1); The other side it is the same.

11 months ago | 0

Problem in using symsum

syms x k x(1)=-2; x(2)=-1; x(3)=0; x(4)=1; x(5)=2; f(1)=-2; f(2)=-1; f(3)=0; f(4)=1; f(5)=2; for i=0:4 a{i+1}=...

11 months ago | 0

Plot please help / plot the domain of transfer function

You can try with tf(): more info: https://es.mathworks.com/help/control/ref/tf.html fun = tf([5 30 55 30],[1 9 33 65]); % B(s...

11 months ago | 0

How can I write the matlab

I made a function that maybe help you: Link: https://es.mathworks.com/matlabcentral/fileexchange/82783-waveform-fourier-series-...

11 months ago | 0

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Piecewise function plot help

The length must be the same x1 = [0:0.1:1]; f1 = zeros(1,numel(x1)); %f1 with the same length as x1 x2 = [1:0.1:3]; f2 = [1/...

11 months ago | 0

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How to create a periodic function?

You can use this function: https://es.mathworks.com/matlabcentral/fileexchange/83058-continuous-piecewise-function-linear-funcio...

11 months ago | 0

Error Message: valid interpreter syntax

add in xlabel() xlabel(filename,'Interpreter','none')

11 months ago | 0

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Show filtered column of a cell array based on filtered cell header

Hi :D data= {'A' ,'B' ,'C';'1', '2', '3';'1' ,'2', '3';'1', '2', '3'}; fprintf("input with a space \n") %Example: a b or a c...

11 months ago | 0

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solving for an unknown variable when given the rest

syms V y = 0.05; k = 0.0806; v = 90; N = 4; h = solve(y == 1/((1+k*(V/v))^N),V) %multiplication sign missing you only shou...

11 months ago | 1

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How to use loop to reduce the code?

you can try with cell clc clear syms t sigma r = -4; w = 2; a = 1; b = 1; W = 1; x_2 = 1 A_sin = 1; A_sigma = [0,1;-w...

11 months ago | 0

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