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# reza hamzeh

Last seen: 11 maanden ago Active since 2019

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Question

how to use crop using coordinate?
hi. i want to crop the red square from this pic using coordinate. lets suppose coordinate of the top-left point of the red squar...

meer dan een jaar ago | 1 answer | 0

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Question

Not enough input arguments error
hi. my code gives me error. plz help me to fix it. what to do? function createfigure(VertexNormals1, ZData1, YData1, XData1, Ve...

meer dan een jaar ago | 0 answers | 0

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Question

what is coordinate of edge of an image?
hi. suppose i have this code. how can i access to coordinate of edge of this image? plz somebody help me. clear; I=imread('te...

meer dan een jaar ago | 0 answers | 0

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Question

Index exceeds matrix dimensions error
hi. plz help me to fix this error. t{1}=0; for n=1:10 if n/2>2 t{n}=t{n}+1 end end % error: Index exceeds...

meer dan een jaar ago | 1 answer | 0

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Question

how to show/hide colorbar by using menu
hi. i want to show and hide a colorbar by using menu. this is my code. it shows the colorbar but it cant hide it. plz help me to...

meer dan een jaar ago | 1 answer | 0

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Question

why matlab gave me 5 eigenvectors for 6*6 matrix?
hi. i wanted to get eigenvectors of a 6*6 matrix. matlab must gave me 6 eigenvectors and 6 eigenvalues but it gave me 6 eigenval...

meer dan een jaar ago | 1 answer | 0

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Question

how to fix Summation index error?
hi every body. my codes give me errors. plz help me to fix it. clear; syms x; sy=[0 -1i;1i 0]; s=kron(sy,sy); t=1; de=50;...

meer dan een jaar ago | 1 answer | 0

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Question

how to write milburn equation?
hi. i wanted to write milburn equation in matlab. but im not sure that i wrote it exactly. seems i made some mistakes because it...

meer dan een jaar ago | 0 answers | 0

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Question

how to get eigenvalues of a function matrix?
hi suppose we have with function H=@(x)[x/2,0,0,0;0,-x/2,x,0;0,x,-x/2,0;0,0,0,x/2]; how to get igenvalues and igenvectors of t...

meer dan een jaar ago | 1 answer | 0

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Question

how to make a matrix-function from other matrix-function?
hi. i want to plot the function N. every thing work well except the pa-function. in fact i dont know how to make a matrix-functi...

meer dan een jaar ago | 2 answers | 0

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Question

how to get element of a matrix that defined as a function?
hi. suppose this matrix function. how can i get its elements ? for example ha(1,1) dosent work. ha=@(J) [0 J;1 J];

meer dan een jaar ago | 1 answer | 0

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Question

how to conver a string to a array or matrix
hi. i have a string. its something like a='[0 1;J 2]' . i want to convert this string to a array. but as u see there is a varibl...

meer dan een jaar ago | 3 answers | 0

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Question

Error using * ?
hi. i wrote these codes. but it gives me error. plz help me. how can i fix this error? if handles.plot2.Value==1 var1=...

meer dan een jaar ago | 0 answers | 0

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how to make a mini photoshop
plz help me

meer dan een jaar ago | 0

Question

how to make a mini photoshop
hi. i wrote some codes to make a mini photoshop. a buttom to upload a pic. a slidbar for changeing brightness and a slidbar for...

meer dan een jaar ago | 3 answers | 0

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Question

how to make a perfect table
hi. i wanted to descripe some info of a pic as a table. but i have some problems here. 1- i dont want number in braket. for exa...

meer dan een jaar ago | 1 answer | 0

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Question

how to plot a prism
hi. i tried to plot a prism with a n-sides base. i only could plot the 2 bases (for n =8). now i have no idea how to plot the fa...

meer dan een jaar ago | 1 answer | 0

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Question

how to plot a cute sphere
hi. i tried to plot a sphere with sphere function. but the sphere was very ugly. and it was more like an ovoid. plz help me to p...

meer dan een jaar ago | 1 answer | 0

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Question

plot a defined function
hi people. i wrote two functions. they work correctly. now i want to plot the function N(T) versus T in range 0.1 to 14 . but i ...

meer dan een jaar ago | 2 answers | 0

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how to plot a defined function ?
these are the errors. plz help me. Error using / Matrix dimensions must agree. Error in fortest>partialtranspose (line 13...

meer dan een jaar ago | 0

Question

how to plot a defined function ?
hi. i coded 2 functions. now i want to plot N(t) versus T. but it gives me errors. plz help me to do that. clear; T=0:0.1:14...

meer dan een jaar ago | 1 answer | 0

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Question

how to sum matrices in a for loop
hi every body. suppose the bellow code. this code give me 16 matrices. how can i sum all of this matrices by using these for-loo...

meer dan een jaar ago | 1 answer | 0

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Question

how to put/get a matrix from array
hi guys. i have 4 matrixes. i put them in a array. now i want to get the nth matrix from this array. i used B(1) (forexample) bu...

meer dan een jaar ago | 1 answer | 0

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Question

how to use Subscript in for loop
hi. i have some mathematica codes that i want to change them to matlab codes. i think its possible to write these codes as two...

meer dan een jaar ago | 1 answer | 0

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to plot a introduced function
thank u very much

meer dan een jaar ago | 0

to plot a introduced function
for any J and d, co is a number. its not a vector. i want to plot co for 0<d<5 and -1<J<1 but i dont know how to do that. plz he...

meer dan een jaar ago | 0

Question

to plot a introduced function
hi. i wrote 4 functions. now i want to plot the forth function but it gives me errors. plz help me to plot it. plot3(C(J,d),J...

meer dan een jaar ago | 3 answers | 0