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solve eqtn by Newton-Raphson's method

2
Find a soln to the following eqtn by Newton-Raphson's method
e^(0.05x)+x^2=132254

Let f(x)= e^(0.05x)+x^2-132254

perform iterations until abs f(x)<10^-6


I just have no idea wt to do!!
THanks a lot!!
Sep 25 '07 #1
2 2454
sicarie
4,677 Expert Mod 4TB
Well, you are in luck. As this seems to be a favorite of teachers' as of late, there are several different threads in this forum that cover it. I'm sure you can search for them and get what you need!
Sep 25 '07 #2
JosAH
11,448 Expert 8TB
Find a soln to the following eqtn by Newton-Raphson's method
e^(0.05x)+x^2=132254

Let f(x)= e^(0.05x)+x^2-132254

perform iterations until abs f(x)<10^-6


I just have no idea wt to do!!
THanks a lot!!
Well, first you have to find the first derivative f'(x) of f(x) w.r.t. x because, as you
should know the NR iteration calculates this: x(n+1) = x(n)-f(x(n))/f'(x(n))

kind regards,

Jos

ps. hint: finding f'(x) doesn't take any programming
Sep 25 '07 #3

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