I am going through the 2nd edition of Paul Wilmott on Quantitative Finance, and came across the following,

enter image description here

Shouldn't the last equality be

$$ F(t;T) = y(t;T) + \color{red}{(T-t)}\frac{\partial y}{\partial T} $$

or maybe I am missing something simple?

Also, is anyone aware is there is an erratum online?

  • 9
    $\begingroup$ Looks like you’re right $\endgroup$
    – dm63
    Commented Nov 15, 2022 at 23:42
  • 3
    $\begingroup$ Yes, an obvious error, but I can understand the frustration when you are new to the subject and encounter typos. There is always the unpleasant feeling that one might have missed something. $\endgroup$ Commented Nov 16, 2022 at 6:15
  • $\begingroup$ It's a typo I agree $\endgroup$
    – NC520
    Commented Mar 10 at 23:40


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