"tom" wrote in message
t...
On 5/10/2010 3:12 PM, wrote:
As Clint said in the wonderful old movie, "A man's gotta know his limits".
For antenna modelers it should read, "A man's gotta know the program's
limits".
Of course, Art thinks things have changed and the computer modelers have a
better grasp upon reality than the ones even he calls "the masters". He is
an example of the blind man leading himself.
tom
K0TAR
The computer program should know its limits. Anytine a program allows the
data entered to be too large or small for the calculations, it should be
flagged as being out of range. Also many computer programs will use
simplified formulars that can mast the true outcome. Usually it is not very
much, but as all errors start to add up the end results may be way off.
I often enter data that I know will be difficult for programs to use. If
the program gives an answer then I usually don't use that program expecting
a exect answer.
Back in the Windows 3.1 and 3.11 days the simple calculator would give wrong
answers to simple problems. I think if you entered 3.11 and subtracted 3.1
from it you got the wrong answer. That program was not corrected by
Microsoft.