History of Hindu Mathematics: A Source Book v2.c17.s16.46
History of Hindu Mathematics: A Source Book v2.c17.s16.46
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v2.c17.s16.46
“What is that square which being multiplied by -5 becomes, together with 21, a square? Tell me, if you know, the method (of solving the Square-nature) when the multiplier is negative.”[¹]