Hi all:

   I got to admit that I am struggling with something that I should know =
as
an engineer. I need to find analitically the points of intersection of tw=
o
curves, that is:

I)   y=3D 1-(x*x)

II) y=3D sen(x)


Normally that would be as simple as doing I=3DII and resolving but in thi=
s
case the fact that II is a trigonometrical ecuation brings some issues to
the resolution. Having 1 - (x*x) =3D sen(x)  I can=B4t find a way to get =
the
posible values for x. I could try a graphical solution but I want the
analitical (i.e. numerical) solution. Any ideas?

*Carlos*


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