Post by Gary on Sept 5, 2016 0:20:56 GMT
Vasco,
On p. 292 at midpage, Needham has
$\hspace{5em}\frac{1}{\sqrt{2}}(1 + \textbf{J})\frac{1}{\sqrt{2}}(1 + \textbf{I}) = \frac{1}{2}(1 + \textbf{I} + \textbf{J} - \textbf{K})$.
Do you agree that this should be written
$\hspace{5em}\frac{1}{\sqrt{2}}(\textbf{1} + \textbf{J})\frac{1}{\sqrt{2}}(\textbf{1} + \textbf{I}) = \frac{1}{2}(\textbf{1} + \textbf{I} + \textbf{J} - \textbf{K})$ ?
It is doubtless a typo, but the difference is important.
Gary
On p. 292 at midpage, Needham has
$\hspace{5em}\frac{1}{\sqrt{2}}(1 + \textbf{J})\frac{1}{\sqrt{2}}(1 + \textbf{I}) = \frac{1}{2}(1 + \textbf{I} + \textbf{J} - \textbf{K})$.
Do you agree that this should be written
$\hspace{5em}\frac{1}{\sqrt{2}}(\textbf{1} + \textbf{J})\frac{1}{\sqrt{2}}(\textbf{1} + \textbf{I}) = \frac{1}{2}(\textbf{1} + \textbf{I} + \textbf{J} - \textbf{K})$ ?
It is doubtless a typo, but the difference is important.
Gary
