# Sam Chak

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**Content Feed**

how can i plotting 3d this differantial functions

Hi @Mehmet Aktay The Mass(m)–Damper(c)–Spring(k) system behaves just like , a critically-damped system where and . Therefor...

1 hour ago | 0

my mathlab didnt read my cftool command, how do i solve it?

Hi @Hafawati Rosdi Please check if a license exists for Curve Fitting Toolbox™. If a license exists, then the status returns 1....

2 hours ago | 0

How to solve third order equation using ode45

@Álvaro Recalde, I'll show an example from https://www.mathworks.com/help/matlab/ref/ode45.html#bu3uhuk function dydt = odefcn...

17 hours ago | 1

Calculate solar zenith angle

Hi @Arvind Gauns I did a web search and found the formula. It's a little strange that your browser didn't show references/guide...

18 hours ago | 0

Create function that functionally same to polyfit

@종석 박 I find it a little strange. Should your Intructor/Professor send you to learn the essentials through MATLAB Onramp at the...

19 hours ago | 0

how to solve an equation by using trial and error method?

@Ali Deniz I'm not sure what the trial-and-error method is for this, but I think that basic Algebraic methods can be used to re...

19 hours ago | 0

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Who can help me with my convolution code please?

@Loh Sheng Ting, I look at your code directly (that is related to Question b) and it looks okay. step = 0.01; t = -5:step:5; ...

1 day ago | 0

is there a way to obtain F(-x) polynomial

@ali temsah Alternatively, the same you've got F(x). H(x) = poly2sym(f, -x)

3 days ago | 1

Why Does My Plot Not Match My Numbers?

Hi @Nick Moffatt Since the values for the parameters are not provided, they are assumed in the following, which should give you...

3 days ago | 0

Earthquake simulation - finite elements method

Hey @Steph Moty I remember seeing this book "MATLAB Codes for Finite Element Analysis: Solids and Structures" in the library. ...

3 days ago | 0

Can you help please?

Hi @Konian Jean Philippe Lionnel Moro Please find out relevant info about Newton-Raphson method here, and see if helps you in w...

3 days ago | 1

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Find using the method of Newton-Raphson (h(𝛼) = 𝑓(𝛼) − 𝑔(𝛼)) the two solutions with a tolerance equal 10-8.

Hi @saher haz I'm unsure if I understand your question clearly. But you can definitely find some info about Newton-Raphson meth...

3 days ago | 0

write a MATLAB code to find the largest element in an array of 10 elements then check whether the number is ODD or EVEN Note: use only (for-loop and if-statement) method t

Hi @3lewwi I think the advice was misconstrued. Generally, the forum moderators never know whether it is a school homework or a...

3 days ago | 0

Control System for a Thermoelectric Cooler in Matlab & Simulink

Hi @Nicholas Zanon Since you have found the use of Peltier Device as a Thermoelectric Cooler, then try connecting a controller ...

3 days ago | 0

fit a sine wave to a set of data points

Hi @C.G. I've got this. What do you get? General model Sin8: f(x) = a1*sin(b1*x+c1) + a2*sin(b2...

4 days ago | 0

How to detect vehicle from a video using MATLAB?

Hi @Kiran Das You can learn to use deep learning for training a vision-based vehicle detector. See a working example here: htt...

4 days ago | 0

How to plug in and solve for algebraic equation?

Hi @Meet Koradia The idea is to reverse the equality in , and then isolate to the left-hand side. You can solve this algebra p...

4 days ago | 0

Help on suitable Simulink Blocks to use

@Williams, this is good. If you have the algorithm, generally, it should simplify things in Simulink. Simulink has a block that...

4 days ago | 0

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unit step function to MATLAB

Hi @Faisal Al-Wazir Unit Step function defined for negative time? clear all; clc t = -6:0.0001:6; x = 2.5*(sign(t - -0.5) -...

4 days ago | 0

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applying newton's method

Hi @Romaisa Abdeselam Lazrak You can find the examples related to Newton-Raphson method in this link: https://www.mathworks.co...

5 days ago | 0

How to implement the given equation in MATLAB?

Thanks @chaaru datta. But the data you shared are non-copyable because they are images. You can click the MATLAB code button an...

5 days ago | 0

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How to write function for SIMULINK model and it's variables

Hi Azin For example only. Explore it. https://www.mathworks.com/help/simulink/slref/matlabfunction.html function [V, tau] = s...

5 days ago | 0

How to see the value of outputs in ANFIS

Hi @redha wassim brahimi You can use this function called evalfis() . This syntax is given below: output = evalfis(fis, input)...

5 days ago | 0

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Plotting Graph in Matlab

@Vartika Agarwal Suggest a simple solution: t1 = 70:81; t2 = 81:85; t3 = 85:100; plot(t1, t1, 'b', t2, t2, 'b--', t3, t3, '...

5 days ago | 0

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how to plots these values?

Hi @Rakesh Roshan Hope this helps! % Data S = [-0.0032 -0.0045 -0.0056]; F = [8 9 10]; % creating plots figure(1) plot(...

6 days ago | 0

I want to create sliders for different parameters

Hi @Marco Zanasco Check out uislider if you want to create slider component. The example should be helpful. https://www.mathwo...

6 days ago | 0

Calculate swath area of a satellite

Hi @Andrea Curatolo I don't have Wert's Handbook with me right. But I have found something from the Radar Toolbox that might be...

7 days ago | 0

Input an array to transfer function block in simulink

@ANAND NALE I don't remember that the Transfer Function block works as a MISO system. If you think that all 20 inputs are fed ...

7 days ago | 0

How to plot this equation if C is 4?

@ken Alternatively, you may use fplot for an overview. fplot(@(t) (5*t.^2)./(t.^5 + 4), [-6 6])

8 days ago | 0

how do I make this signal look like a rectangular pulse?

@Kwaku Junior Maybe like this? t = linspace(0, 400, 40001); u1 = heaviside(t - 185); u2 = heaviside(t - 210); u = u1 - u2; ...

8 days ago | 0

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