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 ...
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...
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...
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? ...
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? ...
want to do this use @ Autowired to inject a map in the service layer let Spring scan automatically, and use key to fetch the injected classes in map, which is equivalent to policy mode . the newly added module is annotated with @ Service ( "key ") ...
when php performs garbage collection, it writes the garbage to the root buffer, and then determines the collection through the execution rules. Excuse me, the garbage here is the possible root. How does php determine the possible root? ...
unexpected character errors always occur when using babel-node excuse me, why is this? ...
Please ask import java.util.Arrays; if you have a question. * Recursive implementation of merge sorting * public class MergeSort { public static void main(String args[]){ int a[] = {0,4,23,1,5,76,34,2,13,79}; mergeSort(a,0,a.length...
< input type= "text " class= "input-phone " placeholder= "Please enter the cell phone number " VMI model = "mobile " maxlength= "11 " style= "background-color:transparent; " > in Wechat, the finger can get the focus, but the content cannot be en...