Kraanthijyaa vargonaath thrijyaavargaath padam dyujeevaa

syaath thrijyaakraanthi yaanthara samaasa ghaathasya moolam vaa

  Day radius is equal to the square root of the difference obtained by subtracting the squares of R sine of the declination from the square of the radius or the square root of the product of the difference and the sum of the radius and the R sine of the declination.]]>