On Sat, 22 Oct 2011 02:12:11 -0400, ehsjr
wrote:

John Fields wrote:

A nice PDF. I like it - much better than the text output my
program produces (shown below). I programmed it, using the 18 ohm
resistors mentioned in the original post. Total R is shown in the
right hand column.

I like it better your way, with the schematic and the generic R. It
works works for any value of R; my program does too, but the output
is limited to only one resistor value per run. Your multiplication
factor works for any resistance. Here's the output I got:

10 in parallel = 1.8
9 in parallel = 2
8 in parallel = 2.25
7 in parallel = 2.57142857
6 in parallel = 3
5 in parallel = 3.6
4 in parallel = 4.5
3 in parallel = 6
2 in parallel = 9
1 single resistor = 18
1 in series with 9 in parallel = 20
1 in series with 8 in parallel = 20.25
1 in series with 7 in parallel = 20.5714286
1 in series with 6 in parallel = 21
1 in series with 5 in parallel = 21.6
1 in series with 4 in parallel = 22.5
1 in series with 3 in parallel = 24
1 in series with 2 in parallel = 27
1 in series with 1 in parallel = 36
2 in series with 8 in parallel = 38.25
2 in series with 7 in parallel = 38.5714286
2 in series with 6 in parallel = 39
2 in series with 5 in parallel = 39.6
2 in series with 4 in parallel = 40.5
2 in series with 3 in parallel = 42
2 in series with 2 in parallel = 45
2 in series with 1 in parallel = 54
3 in series with 7 in parallel = 56.5714286
3 in series with 6 in parallel = 57
3 in series with 5 in parallel = 57.6
3 in series with 4 in parallel = 58.5
3 in series with 3 in parallel = 60
3 in series with 2 in parallel = 63
3 in series with 1 in parallel = 72
4 in series with 6 in parallel = 75
4 in series with 5 in parallel = 75.6
4 in series with 4 in parallel = 76.5
4 in series with 3 in parallel = 78
4 in series with 2 in parallel = 81
4 in series with 1 in parallel = 90
5 in series with 5 in parallel = 93.6
5 in series with 4 in parallel = 94.5
5 in series with 3 in parallel = 96
5 in series with 2 in parallel = 99
5 in series with 1 in parallel = 108
6 in series with 4 in parallel = 112.5
6 in series with 3 in parallel = 114
6 in series with 2 in parallel = 117
6 in series with 1 in parallel = 126
7 in series with 3 in parallel = 132
7 in series with 2 in parallel = 135
7 in series with 1 in parallel = 144
8 in series with 2 in parallel = 153
8 in series with 1 in parallel = 162
9 in series with 1 in parallel = 180

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Nicely done, and thanks for the kind words. :-)

--
JF