<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Sep 2, 2016 at 1:31 PM, Bradley White <span dir="ltr"><<a href="mailto:bww@acm.org" target="_blank">bww@acm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Aside: It would be unfortunate, for any expression X, if ((X + 500ms) - (X - 500ms)) was not 1000ms.<br></div></div></div></div>
</blockquote></div><br></div><div class="gmail_extra">I missed a call there, oops. (f(X + 500ms) - f(X - 500ms)) I can say nothing about.</div></div>