The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t31.29
The Śulbasūtras of Baudhāyana, Āpastamba, Kātyāyana and Mānava: With Text, English Translation and Commentary c8.t31.29
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c8.t31.29
**2.6-2.7.** *Paitṛkī vedi.* This appears to be a rhombus in shape, and pointing towards the cardinal directions. Van Gelder quoted Śivadāsa who prescribed a cord of 8 *aratnis* with marks at 4 *aratnis* and 5⅔ *aratnis*. This is obviously wrong, as these markings do not lead to the relationship for a right triangle. Simply a cord of 10 *aratnis* long is taken up and two ends are tied to the *prācī* points *E* and *W*, where EW equals 5⅓ *aratnis*. The cord is then stretched by the middle point on either side, fixing the points *G* and *H*. Hence EHWG is the required *paitṛkī vedi*.