I want to use matlab ode23 or ode45 to solve the following problem,(adsbygoogle = window.adsbygoogle || []).push({});

(ignore the periods '.' as they are there to line up the vector spaces)

.... Ids ....0.5Ids-0.3Iqs-0.4Idr-0.1IdrIqr ........ 0.2Vd

d ..Iqs = -0.3Ids+0.5Iqs+0.8Idr-0.2Iqr^2 . . + . 0.2Vds

dt .Idr ...-0.5Ids+0.1Iqs+0.7Idr+0.6IdrIqr ......... 0

.. . Iqr ... 0.9Iqs-0.5Iqs-0.4Idr+0.3Iqr^2 .......... 0

.... Wm .. 0.27(IdrIqs-IqrIds)-0.1Wm-0.85 ........ 0

Any help explaining the correct input syntax would be greatly appreciated (as I'm not that familiar with MatLab).

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# MatLab help using ode23/ode45

**Physics Forums | Science Articles, Homework Help, Discussion**