i tried writing a small code to calculate option price using the binomial tree model. I compared my results with results of the same program in excel. There seems to be a minor difference due to decimal precision as excel is using 15 decimal precision and python (both 2.7 and 3.1) using 11. (at least that's what shown on shell)
can some one guide me whats the equivalent of using a double datatype on python and i can't use long() in 3.1 any more. Please also suggest a free editor for python which can at least repeat previous command with a key stroke regards kapil
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