i did a lot of trail to avoid for find my parameter in the last step of that i get this `[Length of output exceeds limit of 1000000]` and i don't know how to fix it i need to find that parameter but when i do substitution  is said this there is any way for hundle this situation 

help-parameter.mw

in here i did all steps but i know something is missing becuase in finding parameter all x and y and t must be remove but still one x is remain so something is wrong with my substitution for finding parameter where is mistake ?

n1.mw

i need a way for making my loop working fast, i need something for calculating such term fast without showing result but thus term make a lot of time for coming out ?

fasting.mw

i want to do export  the table to latex there is command to do?

table.mw

in my iteration when i got answer the error is so big and the method is powerfull i don't know i did mistake or my exact function i have to change it, becuase error is so big , how i can make error be smaller i did any mistake ?
and how i can plot them together exact and approximate in one graph also 3D and 2D

Num-e1.mw