|  |  D.11.4.4 exp2pt Procedure from libraryfindifs.lib(see  findifs_lib).
 
Example:Usage:
exp2pt(P[,L]); P poly, L an optional list of strings
Return:
string
Purpose:
convert a polynomial M into the TeX format, in nodal form
Assume:
coefficients must not be fractional
Note:
an optional list L contains a string, which will replace the default
value 'u' for the discretized function
 |  | LIB "findifs.lib";
" EXAMPLE:"; 
==>  EXAMPLE:
ring r = (0,dh,dt),(Tx,Tt),dp;
poly M = (4*dh*Tx^2+1)*(Tt-1)^2;
print(exp2pt(M));
==> 4\tri h u^{n+2}_{j+2}+(-8\tri h) u^{n+1}_{j+2}+4\tri h u^{n}_{j+2}+u^{n+2\
   }_{j}+(-2) u^{n+1}_{j}+u^{n}_{j}
print(exp2pt(M,"F"));
==> 4\tri h F^{n+2}_{j+2}+(-8\tri h) F^{n+1}_{j+2}+4\tri h F^{n}_{j+2}+F^{n+2\
   }_{j}+(-2) F^{n+1}_{j}+F^{n}_{j}
 | 
 
 |