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# This was a first order differential equation. I made it a second order differential eqn. Sage prompted us "Is k positive,negative or zero" # This was a first order differential equation, which was solved by sage. I made it a second order differential eqn (simply by substituting the first order derivative by second order derivative). Sage prompted us "Is k positive,negative or zero"

  • Book

    Advanced Engineering Mathematics

    Author

    Erwin Kreyszig

    Edition

    8th Edition 

#unsolved
#prob:-7
x = var('x') 
k = var('k') 
y = function('y',x)
sol=desolve(diff(y,x,x) + k*y - exp(-k*x), [y,x])
sol
# This was a first order differential equation, which was solved by sage. I made it a second order differential eqn (simply by substituting the first order derivative by second order derivative). Sage prompted  us "Is k positive,negative or zero"

  • Solution by:

    • Aashita Kesarwani, Student, IIT Roorkee.
    • Praveen Kumar, Student, IIT Roorkee
    • Swati Ahuja,Student,IIT Roorkee

SageDays/Kreyszig-1.6-7 (last edited 2010-08-11 11:02:20 by Aashita)