x = var('x')    # define a variable x
y = function('y',x)   # define x to be a function of that variable
DE=diff(y, x) - 2 * y
f=desolve(DE, y,ics=(0,4)); f
plot(f)

SageDays/Kreyszig-1.2-4 (last edited 2010-08-10 11:40:33 by dassarun)