• Book	Advanced Engineering Mathematics
  Author	Erwin Kreyszig
  Edition	8th Edition

code_begins

x = var('x')
y = function('y',x)
deq1 = diff(y,x,3)-diff(y,x,2)-diff(y,x,1)+1==0
soln = desolve_laplace(deq1 ,[y,x])
soln

code_ends

• Solution by:

  • Indana Ravi Shankar, student, Pydah college of engg, vizag