quotes Joined 6/11/10 Messages 189 Points 28 11/28/11 #1 Hi everyone, I have a peculiar problem here: d(S/S) = d(1) =0 d(S/S) = dS /S+S d(1/S) <product rule> d(1/S) = -dS/ S^2 + (dS)^2/S^3 d(S/S) = dS/S - dS/S + (dS)^2/S^2 =(dS/S)^2 0 =? (dS/S)^2
Hi everyone, I have a peculiar problem here: d(S/S) = d(1) =0 d(S/S) = dS /S+S d(1/S) <product rule> d(1/S) = -dS/ S^2 + (dS)^2/S^3 d(S/S) = dS/S - dS/S + (dS)^2/S^2 =(dS/S)^2 0 =? (dS/S)^2
quotes Joined 6/11/10 Messages 189 Points 28 11/28/11 #3 Thank you.(y) How did you input formula BTW?
quotes Joined 6/11/10 Messages 189 Points 28 11/28/11 #4 \[d\frac{X}{Y}=\frac{d X}{Y}-\frac{Xd Y}{Y^2}-\frac{d X d Y}{Y^2}+\frac{X d Y d Y}{Y^3}\]
quotes Joined 6/11/10 Messages 189 Points 28 11/28/11 #5 \[d\frac{S}{S}=\frac{dS}{S}-\frac{SdS}{S^2}-\frac{dS^2}{S^2}+\frac{SdS^2}{S^3}=0\]