[rrd-users] rrdtool graph question

[Raymond Vermeer]

Hello,

does anyone no how to do the following ?
I have a rrdfile with 3 GAUGE datasources A, B and C.
Now I want to graph the following formula on a line or area :

(A + B - C) / (A + B)

greetings
Raymond Vermeer

PTT Post / Dox & Data/Tri-C
Tauber 52 (kamer TA 168)
2267 ED Leidschendam
Tel (070) 33 42 298
Fax (070) 33 44 426
r.vermeer at ptt-post.nl
Prive 
Mobiel 06 16 42 24 16
raymond.vermeer at topficie.nl
http://www.topficie.nl

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