Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
x,y=var('x,y,z') plot3d(x^2+y^2+z^2==4(x,0,2pi),(y,0,2pi),(z,-pi/2,pi/2)
Solution by:
<g.mamatha>, <student>, < prakasam engg college>
<VVL Amruthavalli>, <student>, <prakasam engg college>