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# Anthony Sirico

Last seen: 1 month ago Active since 2020

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State Space with Disturbance Matrix
You cannot use the ss function symbolically.

2 months ago | 0

Question

plot a function that has a variable that changes with time
The function has a variable ap that changes at t >= 100s. How do I plot that? close all; clear; clc tspan = [0 150]; x0 = [1]...

3 months ago | 1 answer | 0

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Question

Call a function with multiple nonlinear eqns with ODE45
I created a function with multiple nonlinear equations, and inside that function i call on another function that uses a time par...

3 months ago | 1 answer | 0

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Question

Finding critical/equilibrium Points of a nonlinear System
I'm given the following nonlinear equations: Dx1 = @(x1,x2) (x1-1).*(x1+x2); Dx2 = @(x1,x2) x2 - x1.^2; What would be the bes...

3 months ago | 1 answer | 0

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Question

Using subs in a matrix of equations
If i have a matrix of eqns, how can i sub in certain letter values now. I am using a live script where the first section creates...

4 months ago | 1 answer | 0

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Question

Error using DynamicSystem/lsim
clear; clc; close all; A = [1 0 0 0; 0 -1 0 0; 0 0 -2 0; 0 0 0 -3]; B = [1 0; -1 1; 0 -1; 1 -1]; C = eye(4); D = 0; X0 = ...

4 months ago | 1 answer | 0

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State Space in lsim keeps returning 'Matrix dimensions must agree'
t has to be 1x4.

4 months ago | 0

| accepted

Question

State Space in lsim keeps returning 'Matrix dimensions must agree'
A = [1 0 0 0; 0 -1 0 0; 0 0 -2 0; 0 0 0 -3]; B = [1 0; -1 1; 0 -1; 1 -1]; C = eye(4); D = 0; X0 = [-2; -1; 1; 2]; EvA = eig...

4 months ago | 1 answer | 0

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Question

simulate State Space system with lsim
A = [0 1 0 0; 0 0 1 0; 0 0 0 1; -2 -5 -7 -2]; B = [0; 0; 0; 1]; C = [1 3 0 0]; D = 0; t = 10; sys = ss(A,B,C,D); x0 ...

5 months ago | 1 answer | 0

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Question

SS2TF Error
sysm s R1 R2 C1 C2 A = [-(R1+R2)/(C1*R1*R2) 1/(C1*R2); 1/(C2*R2) -1/(C2*R2)]; B = [1/(C1*R1); 0]; C = [0 1]; D = 0; [n,d]...

5 months ago | 2 answers | 0

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Question

Local Function not being Entered
I am trying to create a recursive algorithm, with a local function. But when i test the alg, the initial input variables don't s...

7 months ago | 1 answer | 0

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Question

Calling python in MATLAB
In the below code, I have a Depth First Search with the pseudocode and the python code. My first question is how can I call this...

8 months ago | 1 answer | 0

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Question

Creation of edge set for a specific perfect matching number
N = input('N='); %Number of vertices J = 1:2:N-1 %odd numbers to N-1 P = [1, cumprod(J)] %Double Factorial V = 1:1:N %availab...

8 months ago | 0 answers | 0

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Solved

Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

8 months ago

Solved

Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

8 months ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

8 months ago

Solved

Given a and b, return the sum a+b in c.

8 months ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

1 year ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

1 year ago