I’ve been awarded a sabbatical for the fall semester of 2018 to write a new free, open-source textbook for GVSU’s new MTH 124: Functions and Models. The purpose of this course is to prepare students not-yet-ready for calculus for a first semester course in calculus. MTH 124 has run for three semesters at Grand Valley, […]
I’ve made the following corrections to fix some typos and other errors: The statement of the quotient rule in Section 2.5 mistakenly stipulated that the derivative of the denominator be nonzero, when of course it’s the denominator function itself must be nonzero. In Exercise #6 in Section 3.4, the cost of the top was accidentally […]
I’m excited to announce several changes to single variable Active Calculus along with some corresponding updates that will occur over the next month or so. + There is now a new HTML version of the text. Thanks to Rob Beezer’s Mathbook XML (now called PreTeXt), this output format is optimized for viewing on a range […]
Happy New Year everyone. Here are a couple of brief updates if you are planning to use Active Calculus in the upcoming winter semester. Thanks to everyone who sent us errors they found in the text, as well as other suggestions. Steve has updated the multivariable version of the text to fix all known errors, […]
An overdue addition for Active Calculus (single) and the addition to AC Multivariable that prompted it: errata pages for both. You can find a list of currently identified errors in each text at these links: single variable, multivariable. Of course, if you find errors that need to be added to either page, please contact me.
This summer, in addition to working with Steve and David on AC3, I went through the original single-variable version and implemented changes to correct typos, clarify questions, and more in response to over 100 suggestions I received from users. To all of you who sent those to me: thank you. I’m pleased to say that […]
I realized today that somehow an older version of my download page had gotten migrated to my website (I think this happened when I did some other updates two weeks ago), so if you have downloaded the text in the past two weeks, you should check that you have the 2014 version. The 2015 version […]