ur logic is wrong..............i cant say bout the code ,but newton ralphson method............u ar using has the wrong logic..

x2=x-(func/deriv)
this is the actual logic of newton ralphson...

yes it seems so, but i think it will not do any problem for the pause command

do a thing ..................
use the unload command after the
frmenter.Visible = True
line.
the error u describe is just the opposte of waht it shold be withthis code.so just tey that..

Ya , rite that is the way to do the program. the code works fine

u try the code snippet:
Private Sub cmdSwitch_click()
if picture1.picture ="D:\hehe\Winter.jpg" then
picture1.picture = LoadPicture("D:\hehe\Sunset.jpg"
else
picture1.picture =...