(In reply to
Agreement by xdog)
Iterating to a solution (change of sign after subtracting 2000 from each side), via (in its final form):
DEFDBL AZ
PRINT : PRINT
FOR x = 4.12982578125# TO 4.1298257812# STEP .000000000001#
y = (2 + (2 + (2 + x) ^ 2) ^ 2) ^ 2  2000
PRINT x, y
NEXT
PRINT : PRINT
FOR x = .129825781# TO .129825782# STEP .0000000001#
y = (2# + (2# + (2# + x) ^ 2) ^ 2) ^ 2  2000
PRINT x, y
NEXT
I get approx. 0.1298257812 and 4.1298257812, still adding to 4.

Posted by Charlie
on 20130128 14:08:43 