Book
Linear Algebra
Author
Gilbert Strang
Edition
var('x,y')
f=function('f',x,y)
f=2*x**2+4*x*y+y**2;f
F=diff(f,x);F
F(1,-1)
print "f and F are not positive definite"
Solution by:
<sarada>, <student>, <prakasam>
<ananthalakshmi>, <student>, <prakasam>