Mayamatam 15.41

15.41

tribhāgonā tripādoccā madhyamā potikā bhavet
pūrvoktaṃ tat samaṇḍīnāṃ sakumbhānāṃ caturguṇam

The intermediate bracket is less by a third part [in length] and three-quarters high. / For those with abacus and vase, the aforesaid is fourfold;