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D.2.3.11 number_e
Procedure from library general.lib (see general_lib).
- Usage:
- number_e(n); n integer
- Return:
- Euler number e=exp(1) up to n decimal digits (no rounding)
- of type string if no basering of char 0 is defined
- of type number if a basering of char 0 is defined
- Display:
- decimal format of e if printlevel > 0 (default:printlevel=0 )
- Note:
- procedure uses algorithm of A.H.J. Sale
Example:
| | LIB "general.lib";
number_e(30);"";
==> 2.71828182845904523536028747135
==>
ring R = 0,t,lp;
number e = number_e(30);
e;
==> 13591409142295226176801437356763/5000000000000000000000000000000
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