[amibroker] combining two conditions for buy or sell signals

["rijnaars" <rijnaa@xxxxxxx>]

if i want a buy signal for instance when the MA 5  is crossing MA 20 zone 
but only want this buy signal when the MA is crossing a rising MA 20 
in upwards direction.

So not only must MA5 croos upwards but also must the MA 20 be rising

how do i make this buy condition?? 



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