Originally Posted by

**user1234** Hello

I have a list whit numbers in the form {{x1,y1},{x2,y2}...} if i plot the numbers i get a plot that almost looks like E^x (E= 2,71).

I want to create a function that follows my numbers i have tried to use FindFit[data,a*E^x,a,x] in mathematica to do that but i am failing. The function i get dosent reflect the numbers i have.

I would be very happy if anyone could help me whit the Findfit function.

I belive that the problem is caused by the expression that is probably wrong (a*E^x) but i dont know how to write a working expression that fit my values.

This is the numbers i use:

{30, 0.095}, {31, 0.125}, {32, 0.094}, {33, 0.109}, {34, 0.109}, {35, \

0.125}, {36, 0.151}, {37, 0.156}, {38, 0.172}, {39, 0.282}, {40, \

0.265}, {41, 0.328}, {42, 0.36}, {43, 0.531}, {44, 0.594}, {45, \

0.812}, {46, 0.995}, {47, 1.531}, {48, 10.016}, {49, 10.093}, {50, \

15.644}, {51, 17.025}, {52, 21.}, {53, 26.844}, {54, 28.078}, {55, \

35.976}, {56, 47.985}, {57, 60.406}, {58, 84.533}, {59, 118.786}, \

{60, 170.345}, {61, 308.687}, {62, 426.375}, {63, 658.689}, {64, \

937.593}, {65, 1230.61}, {66, 1729.16}, {67, 2143.65}, {68, 2698.39}, \

{69, 3497.201}, {70, 4117.}, {71, 6447.02}, {72, 9233.23}, {73, \

10821.2}