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Last seen: 3 months ago Active since 2011

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How to plot planes parallel to the coordinate axes given by
How to plot planes parallel to the coordinate axes given by y = linspace(0,5) ; x = linspace(0,5) ; [Y,X] = meshgrid(y,...

3 months ago | 1 answer | 0

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Question

How to plot the surface of the parabolic cylinder $y^2=8x$ in the first octant bounded by the planes $y=4$ and $z=6$?
How to plot the surface of the parabolic cylinder in the first octant bounded by the planes y=4 and z=6? Y = linspace(0,4,10...

3 months ago | 1 answer | 0

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Question

How to move the axes so that they start from the center of the sphere (0,0,0)
()1 How to move the axes so that they start from the center of the sphere (0,0,0) (2) If I only want to keep the boundary curv...

4 months ago | 2 answers | 0

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Question

I want to highlight the curve of intersection of the sphare and the plane x+y+z=0 by a thick blue curve. How to do that?
I want to highlight the curve of intersection of the sphare and the plane by a thick blue curve. How to do that? I have tried t...

4 months ago | 1 answer | 0

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Question

How to plot the following surface
How to plot the following surface: Which type of parametrization is required to plot it... please give me a code

4 months ago | 3 answers | 0

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How to plot such a complete figure by matlab. The hemisphere is $x^2+y62+z^2=4$ and the cylinder is $x^2+y^2=1$ with bases $z=0$ and $z=\sqrt{3}$
How to plot such a complete figure by matlab. The hemisphere is $x^2+y62+z^2=4$ and the cylinder is $x^2+y^2=1$ with bases $z=... 4 months ago | 1 answer | 0 ### 1 answer Question In pplane8, how to increase the number of parameter boxes from 6 to 8 In pplane8, there can be maximum 6 parameter boxes as shown in the attached fig......how to increase the number of parameter box... 10 months ago | 1 answer | 0 ### 1 answer Question How to get such types of multiple arrows using annotation('textarrow',[0.786 0.775],[0.763 0.763]); or else How to get such type of double arrows at the right of each line using a loop? p = 0.3:.5:3.5; plot([0; 10.5],[p; p], 'col... 11 months ago | 0 answers | 0 ### 0 answers Question How to get a solid circle encircled by another circle and solid circle encircled by a square I am using plot(X,Y,'o','MarkerFaceColor', 'k') to get solid circle. But I want to get a solid circle encircled by another ci... 2 years ago | 1 answer | 0 ### 1 answer Question How to plot the phase potrait of piecewise smooth model I want to plot the phase portrait of the following system How to do this? Please help. 2 years ago | 0 answers | 0 ### 0 answers Question How to insert arrows at the middle of each of the parallel lines In the follwoing I want to insert arrows at the middle of each of the parallel lines p = 0.01:.05:1; figure(1) plot([0; 1... 2 years ago | 2 answers | 0 ### 2 answers Question How to plot this implicit function I need a beta vs eps plot of the curve t^2-d. The expression of t and d depends on x, y where x, y depend on beta. Please help. ... 3 years ago | 1 answer | 0 ### 1 answer Question How to plot$40b^2x-9b^2-60bx+72b-144=0\$
How to get a (b,x)-plot of the curve where b varies from 0 to 10 and x varies from 0 to 1 I have tried the following ezpl...

3 years ago | 1 answer | 0

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Question

Plotting only the maximum and minimum amplitude of the coexistence periodic orbit vs d
I am using matcont. I want to get the one parameter bifurcation diagram d vs x x'=s*x*(1-x)*(x-b)-(1+a*y)*x*y/(1+h*(1+a*y)*x) ...

3 years ago | 0 answers | 0

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Question

How to get different colours for different regions for this problem
How to get different colours for different regions for this problem? Here are 10 regions and I want to colour the regions? How t...

3 years ago | 1 answer | 0

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Need the backward trajectories of ode plot
I have a system of differential equations which I can solve by Euler's method. The following code gives a plot of a trajectory t...

9 years ago | 1 answer | 0

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Question

How to solve odes without using ode package rather using RK4 method.
How to solve system of ODES without using Ode package rather using RK4 method and plot(t,y1,t, y2,t, y3). dy1/dx = 3*y1+y2; ...

9 years ago | 0 answers | 0

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Question

How to plot a BAR chart
How to plot a BAR chart with the following data X: 28-30 22-27 13-21 8-12 4-7 Y: 3 16 70 8 3

9 years ago | 1 answer | 0

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Question

solve an expression and plot
Suppose, for each alpha, I have to find a delta which is the highest positive root of the equation A^2-4*B*beta=0. The expressi...

9 years ago | 2 answers | 0

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Question

Implicit function plot of function having discontinuity at origin.
I have a implicit function to be plotted which is (1-x)-a*x.*y./(x.^2+b*y.^2) where a =.1; b=.001;. Note that there is a discont...

9 years ago | 2 answers | 0

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Question

How to change color of x and y axis by red and blue
I want to change the color of each axis by red & blue? x=0:.1:1 axis([0 1 0 1]); y=x.*(1-x); plot(x,y,'g'); ...

9 years ago | 1 answer | 0

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Question

How to color RED to the lower portion of the curve
How to color RED to the lower portion of the curve y=x^2 x = 1 : 0.1 : 10; y = x.^2; plot(x,y) axis([1 10 0 100])

9 years ago | 1 answer | 0

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Question

How to get the positive root of the cubic a*x^3+3*b*x^2+3*c*x+d=0
How to get the positive root of the cubic a*x^3+3*b*x^2+3*c*x+d=0 where a=1,c=b+2, d=-3 and b=.1:.1:2. If rr is the root, fi...

9 years ago | 3 answers | 0

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Question

How to get tau for every c and plot a c vs tau graph
How to get tau for every c from the equation "tau=acos(((omega^2*(D1-A*B)-C*D1)/(B^2*omega^2+D1^2))/omega)" where A, B, C, D1, o...

9 years ago | 1 answer | 0

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Question

How to find only positive root of a polynomial
How to find only positive root of a polynomial equation x^4+7*x^2-A=0 where A is varying from 1:.1:3. If rr is the positive real...

9 years ago | 1 answer | 0

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Question

How to find a real positive root
How to find only the positive root of the equation x^3-A=0 for each A where A is a parameter varying like 1,2,3,....1000. I...

9 years ago | 1 answer | 0

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Question

How to find a real positive root of a bi-quadratic equation
Suppose a bi-quadratic equation x^4+4*x^2-7=0. How to find a positive real root of it. solve(x^4+4*x^2-7=0, x, Real, Positi...

9 years ago | 1 answer | 0

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Question

How to plot a complicated function
How to plot a complicated equation -(r * x / K) + (alpha ^ 2 * (1 - c) ^ 2 * x * y / (1 + alpha * h * (1 - c) * x) ^ 2 * h)...

9 years ago | 2 answers | 0

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Question

How to draw x=2 line using plot command
I want to draw the vertical line x=2. I want to draw it by using plot command in x-y plane, x-is the horizontal axis. How to dra...

9 years ago | 2 answers | 0