how to use function and ode45

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kareem maslah
kareem maslah 2019-2-1
评论： Rena Berman 2019-3-5
hello friends,
can you help me to write that in matlab? they ask "write this equations in matlab function" for the first quastion .....the second quastion is to call the function and use ode45
when q=1 m1=2 m2=2 R1=1 R2=2 g=9.82 b=0.001
thank you
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madhan ravi
madhan ravi 2019-2-1
https://www.mathworks.com/help/matlab/ordinary-differential-equations.html - take your time read it , understand , try something and come back with specific question/s
Rena Berman
Rena Berman 2019-3-5
(Answers Dev) Restored edit

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Guillaume
Guillaume 2019-2-1
i got a complex numbers! [...] .the question is why!?
  • You're taking the root of a negative number ,
  • Or you're calculating the arcsin or arccos of a number outside [-1 1],
  • Or you're doing any other mathematical operation that can result in complex numbers
Reread the formulae that you wrote. In particular, note that x^.2 is . Perhaps you meant x.^2
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kareem maslah
kareem maslah 2019-2-1
thank you my friend...i didnt notice that for two hours ! the (x^.2)! now the function is working

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