Is backpropogation Feasible

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C++

MatLab

hi,

my Problem is this.
I have a temperature data collected for over 7 years (1996 to 2003) daily.
I was suggested to use back propagation to predict the next year.. 2004

I tried testing it in matlab..
recursion and time series..
both of them gave me different results.. but in both i could only provide one year data to predict the next year.(not sure what i am doing wrong or how to incorporate 7 years data to get 1 predicted year)

I need to then Code the process in C/C++

Please help me with
1> Which method will help achieve the desired results..
2> i have gone through this forum and found several snippets, but is there any link i should concentrate on.

regards