Linear Maths craze

Two days of no blogs makes me too bored :) .. Today there was the link from Amal in facebook, which kept me busy for half an hour solving all quadratic equations and then to the planes and then the triangles ;) and then Hero's Formula. :) I guess a good revision of my mathematics. Guess if I had not been landed in the S/w industries i would be in the mathematics world trying to find equations of the various Kolams() which are drawn in front of homes :).. :))..

Links missed -->
Blog explaining -->

http://blog.wolframalpha.com/2009/12/01/step-by-step-math/

http://www.wolframalpha.com/