# Aisha Mohamed

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**Content Feed**

Question

is this expression right in MATLAB?

Hi I know when I want to write the polynomial f(z) = (0.0001) + (0.0174)z + (0.9999)z2 in MATLAB it will be in this ...

15 days ago | 1 answer | 0

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answerQuestion

Is it necessary to use the same period of zlim and caxis when we plot the second order function and its cosin?

I am tried to plot the second order function (thank you very much for all who helped me to do that ) . My question is Is it ...

1 month ago | 0 answers | 0

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answersQuestion

How to plot cosine of complex function of third degree?

I plot the phase of this function fb(z) = (0.1496 − 0.1692i)z^−1 + (0.2472 + 0.0916i)z^−2 + (−0.8196 − 0.3718i)z^−3 by using ...

1 month ago | 0 answers | 0

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answersQuestion

how can I plot the cosine of this function f(1/z) = (0.1000 -0.3000i)z^-1 + (0.2121-0.0008i)z^-2 + (-0.9000-0.0010i)z^-3

How can I plot the cosin of this complex function: f(1/z) = (0.1000 -0.3000i)z^-1 + (0.2121-0.0008i)z^-2 + (-0.9000-0.0010i)z^...

1 month ago | 0 answers | 0

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answersQuestion

How can I plot this function such as all values of |f(1/z)| be more clear and how can I plot the cosine of the phase of this function ?

When I plot this function (thanks for every help). f(1/z) = (0.1000 -0.3000i)z^-1 + (0.2121-0.0008i)z^-2 + (-0.9000-0.0010i)z^...

1 month ago | 1 answer | 0

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answerQuestion

how to put many small text boxes that display information about individual data points in the same figure?.

I am trying to use data cursor in Matlab to identfy many point in the same figure, but the previous point disapper when I identi...

2 months ago | 1 answer | 0

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answerQuestion

I used different codes to plot the phase of this function f(z) = (0.10 + 0.3i) + (0.4243 + 0.0017i)z + (0.9 − 0.001i)z^2 why I always find discontinuity at Z_R =0

I used the folloing 2 codes from Davidgoodman and Torsten (Thank you very much for all of them) respectivally to plot this fu...

2 months ago | 0 answers | 0

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answersQuestion

why we find discontinuity when we plot this analytic function \begin{align*} f(z) =(0.5+000i)+(0.5000 + 0.8660i) z+(-0.2500+0.4330i)z^2 \end{align*}

I used the code which is provided by TORSTEN(Thank you so much) to plot this function: $ f(z) =(0.5+000i)+(0.5000 + 0.8660i) z...

2 months ago | 0 answers | 0

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answersQuestion

I plot these two functions by Matlab but the phase of the both of them look likes strange and I think the plot of the phase is wrong in both of them

I plot these two functions by Matlab but the phase of the both of them look likes strange and I think the plot of the phase is ...

3 months ago | 0 answers | 0

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answersQuestion

How to calculate and plot this function f(z) =\frac{1}{2}[\frac{(z^3)-(0.5+0.8660i)}{z^4-(0.5-0.8660i)z^3}]

How can I simplify and plot this function: $ f(z) =\frac{1}{2}[\frac{(z^3)-(0.5+0.8660i)}{z^4-(0.5-0.8660i)z^3}] $ I a...

3 months ago | 1 answer | 0

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answerQuestion

How to plot the magnitude and the phase of this function f(1/z)=(0.5 + 000i)*z^(−1 )+ (0.2500 − 0.4330i)*z^(−2) + (−0.2500 − 0.4330i)*z^(−3)?

Thank you for every one helped me to understand how to plot comples function ,Torsten and David xplain ed different ways to ...

3 months ago | 1 answer | 0

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answerQuestion

How the plot of the phase of the complex function look likes BY USING THE MATLAB?

I HAVE THIS COMLEX FUNCTION: f(z)=(0.5)+(0.5+0.8660i) z+(-0.25+0.4330i) z^2 firistly, how to plot the phase and magnitude of...

3 months ago | 1 answer | 0

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answerQuestion

What does the phase of complex function mean and how can I plot it in matlab?

I know that any complex number has a magntude and argument in the complex plane where the magnitude represent the length of the ...

3 months ago | 0 answers | 0

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answersQuestion

how to label the axes when I want to plot the complex function in the case of( the phase of f(1/z) )?

I have received the following great answer for this question (how to plot the function f(1/z) in matlab where z is any complex n...

4 months ago | 0 answers | 0

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answersQuestion

what the difference between the phase of f(z) and |f(z)|

I want to plot the complex function f(z) and I am tring to plot |f(z)| as well , but I can not understand what the difference be...

4 months ago | 1 answer | 0

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answerQuestion

how to write zeta in matlab

Hi I am trying to legend the roots of my function as zeta1,zeta2.... I used this answer, figure(); x = real(r0); y = i...

4 months ago | 1 answer | 0

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answerQuestion

What the difference between plotting the function f(z) (where its coefficients change with time) and plot of its zeros which evolves with time t

I use this function which has coefficints change with time t first I plotted its roots (which evolve with time t) an I have got...

4 months ago | 1 answer | 0

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answerQuestion

how to distinguish between four zeros in matlab plotting

I ploted the zeros of the function f(z), where z is a complex number and its rootes are complex numbers. for example When f(z) ...

5 months ago | 1 answer | 0

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answerQuestion

How to plot the function f(1/z) in matlab where z is any complex number where te coefficients evolve with time t

I am trying to plot the functions f(z) and f(1/z) where z is complex numper and the coefficients of both functions evolve with ...

5 months ago | 0 answers | 0

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answersQuestion

how to plot compelex function

I want to add some information that make this question more clear 1- I use p=[(0.9-0.124i) (0.4243 + 0.0017i) (0.10 + 0....

5 months ago | 0 answers | 0

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answersQuestion

How to plot the function f(1/z) in matlab where z is any complex number

I work in both function f(z) and f(1/z) and the coefficiens of both change with time t. and z is complex number. For example ...

5 months ago | 1 answer | 0

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answerQuestion

how to write fraction function in complex plane by using matlab

Hi I worked in ploting function defined in complex plane by using matlab I know we can write the polynomial in matlab by using...

6 months ago | 1 answer | 0

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answerQuestion

how to solve and plot this complex function in matlab (1/z +1/z^2+ 1/z^3)

Hi How can I solve and plot this complex function in matlab (1/z + 1/z^2 + 1/z^3) where z in complex plane

6 months ago | 0 answers | 0

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answersQuestion

How do I make polynomial solutions evolve over time?

I have periodic system of zeros for 4th degree polynomial, and I use this relation to make all zeros evolve over timE $ |f(t)>...

1 year ago | 0 answers | 0