How to solve two differential equations in MATLAB and plot it?











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I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










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migrated from superuser.com Nov 28 at 13:08


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  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47















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down vote

favorite












I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










share|improve this question













migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.















  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










share|improve this question













I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.







matlab






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asked Nov 28 at 10:35









M Cosmo

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1




migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.






migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.














  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47


















  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47
















Possible duplicate of How to solve coupled differential equation in matlab using ode45
– am304
Nov 28 at 15:47




Possible duplicate of How to solve coupled differential equation in matlab using ode45
– am304
Nov 28 at 15:47

















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