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Frage
working on a simple vector addition but every result in the loop shows up, even after i allocate memory. can someone please help me out? thanks a lot
A = [7 21 30 40]; B = [11 4 14 6]; [rows, columns] = size(A); D = zeros(1,rows); for i = 1:rows for j = 1:columns ...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
hi my assignment requires product of all diagonal elements, i did a simply look as copied below, but could only pass the test on one case and failed all others. can you please
shed some light on what I'm doing wrong? much appreciated. dU = 1; for i = 1:n dU = dU*U(i,i); end
mehr als 4 Jahre vor | 1 Antwort | 0
1
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My assignment asks to check compatibility of input and return an empty [ ] if not compatible. One of the input argument must be a column vector. can you please kindly explain
what kind of "if" statement i should include in my function? Thanks a lot.
mehr als 4 Jahre vor | 1 Antwort | 0
1
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hello, I'm supposed to check if the matrix is square if not, disp a message. when i used [n,m]=size(A), if n~=m, disp, it seems to work; if i use [n,n]=size(A),
can you please tell me what's wrong in below and how to use [n,n]=size(A) properly? silly question but you can tell i'm new. Tha...
mehr als 4 Jahre vor | 3 Antworten | 0
3
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hello, i'm working on following assignment. it works and gets the correct roots, but i'm supposed to set up inputs a and b as an array containing initial bracket,
so i [can't pass the test code my prof set up which inputs a and b as [a,b]. ' ... 'Can you please kindly explain how i can...
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Dear experts out there, I'm using an online version of matlab. when i try to run a function, it keeps freezing and I see below message at the bottom.
Message: "2 usages of 'y1' found". Is the freezing related to this error message? if so, how can i clear it? Thank you in adv...
mehr als 4 Jahre vor | 0 Antworten | 0
0
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hello, i need to define one of the input arguments as a column/row vector. i tried the following but it says parse error. can someone please tell me who to do it properly.
function [dy1,dy2] = A5deriv(t,[y1,y2])
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
I'm trying to plot a 3D. Seems simple but it keeps telling me "related documentation" error. Am I copying the functions in the wrong way? appreciate the hlep.
t = 0:0.1:20; x = (10 + 4.* sin(t)) *cos(t); y = (20 + 4.* sin(t)) *sin(t); z = 5.*exp(-0.2*t); plot3(x,y,z)
mehr als 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Hi I'm trying to plot using a for loop. don't see syntax errors but plot comes out empty. appreciate your guidance.
for t = 0:30/100:30 y1 = 6*exp(-0.2)*t*sin(7*t+3); y2 = 4*exp(-0.1)*t*sin(3*t-1); end plot(y1,t); hold on; plot(y2,t); ...
mehr als 4 Jahre vor | 1 Antwort | 0
