how does matlab use one time column matrix [time] to find another 4-column matrix [time, XMagi X] corresponding to row data-the two matrices are not the same length?
how does matlab use one time column matrix [time] to find another 4-column matrix [time, XMagi X] corresponding to row data-the two matrices are not the same length?
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Why can t symbolic variables be logarithmic? an is a symbolic variable, and I want to generate another symbolic variable, ln (a), to display an error. But pow (a pencils 4) is OK. Why? ...
import sympy x em sympy.sin (f) z=r*sympy.sin (l) how to find the Jacobian matrix? xpenr sympy.cos (l) sympy.cos (f) ypenr sympy.cos (l) sympy.sin (f) z=r*sympy.sin (l) ? J = [cos (l) cos (f),-r sin (l) cos (f),-r cos (l) * sin (f)] [c...
topic description A rookie of matlab programming asks all the great gods to give you an idea to create an entry in the Filter data filter with matlab programming sources of topics and their own ideas there is a raw data on hand, no tags, only numb...
python has matplotlib,. I don t know whether CPP has the same level of drawing library. If you want to achieve the drawing effect of matlab in the MFC framework, you can achieve some simple operations like matlab, such as zooming in and out, coordinate ...