A formula for IRR

[salvomic]

(05-18-2015 07:51 PM)akmon Wrote:  With this code:

Code:

EXPORT IRR()
BEGIN    
   return fsolve(ΣLIST(MAKELIST((L1(I)/X^(I-1)),I,1,SIZE(L1))),X)-1; //  (Original command line from Akmon)
END;

and your 10 numbers list,
I get 0,13917 in home and CAS mode, directly.

should be 11: {-79000, 14000, 11000, 10000, 10000, 10000, 9100, 9000, 4500, 100000}
I get result only with #CAS version, not with the above code, but I'll try again...