Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
theta=var('theta') #define a variable theta r=function('r',theta) #define r to be a function of that variable t= diff(r,theta)+3*r desolve(t,[r,theta])
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<Rachit Jha>, <student>, <IIT ROORKEE>
<Arnab Basu>, <Student>, <IIT ROORKEE>
<Saurabh Agarwal>, <student>, <IIT ROORKEE>