why is this happening?
- To: mathgroup at smc.vnet.net
- Subject: [mg99198] why is this happening?
- From: sean_incali at yahoo.com
- Date: Wed, 29 Apr 2009 06:40:23 -0400 (EDT)
Consider the following. Solve[k1 ld + k1 k2 + ld^2 == 0, ld] vs Solve[k2/k1 + ld^2 + ld == 0, ld] I expected to get the output I got from the first code. >From the second code, I was expecting something along the lines of ld ->-1 + (SquareRoot[1 - 4 (k2/k21)])/2 ld -> -1 - (SquareRoot[1 - 4 (k2/k21)])/2 since that is the answer. Why is Mathematica turning the second scaled equation into the unscaled one in the first before solving it? Thanks for any insight. Sean