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x = [-2:0.1:2]; z=x.*(1-x).*(2-x).*(4-x)/((6-x)-(1-x).*(x-7)); I am getting error. Please correct my problem.

3 Answers

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Asked 3 years ago

du/dt=((1 − u)(u −M)(u^2 + A)−v)u dv/dt= B(u−C(u^2 + A))v I have to draw "The u-v zero-growth isoclines...

2154 views

Posted 5 years ago

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...

2 Answers

Asked 2 years ago

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

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...

I have two ranges of x = [0:0.01:1] and x = [2:0.01:3] and I want to plot x vs. Y in one plot for the two rages of x values with...

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

1 Answers

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'); ...

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])

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...

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...

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...

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...

I have two complicated functions y^7-y^3-sin(x)+a*sqrt(x)=0 and e^(-x)+b*cos(y)-c*x^2+y^2=0 where a, b,c are given by 4, 3, 2. I...

x = [-2:0.1:2]; z=x.*(a-x^2); plot(x,z) I want to plot(x, z) for four values of a = .5, 1, 1.3, 1.95. How to ...

I want to draw the bifurcation diagram fro the model. dx/dt=rx(1-x/K)-mxy/(ax+by+c) dy/dt=emxy/(ax+by+c)-dy-hy^2. param...

Asked 4 years ago

I want to get the isocline surface of the 3D system of differential equations dx/dt=r*(1-(x+y)/K)*x-lambda*x*y-theta1*x*z/(a+x);...

1372 views

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...

I am plotting with plot(x,var(x),'o') var(x) is the variance. These points (x,var(x)) are the discrete points in a x-v...

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...

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...

I use plot3(x,y,z, 'b') box on for plotting a 3D system. I want the faces of xy-plane, yz-plane and zx-plane to be c...

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; ...

0 Answers

dx/dt=rx(1-x/k)-alpha(1-c)xy/(1+alpha(1-c)hx) dy/dt=θ*alpha*(1-c)x(t-tau)y(t-tau)/(1+alpha(1-c)hx(t-tau))-dy for the param...

939 views

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