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Description
Differential Equations: A Visual Introduction for BeginnersDifferential Equations: A Visual Introduction for Beginners is written by a high school mathematics teacher who learned how to sequence and present ideas over a 30 year career of teaching grade school mathematics. It is intended to serve as a bridge for beginning differential equations students to study independently in preparation for a traditional differential equations class or as supplemental material for students currently in such a class. It is
Differential Equations: A Visual Introduction for Beginners is written by a high school mathematics teacher who learned how to sequence and present ideas over a 30-year career of teaching grade-school mathematics. It is intended to serve as a bridge for beginning differential-equations students to study independently in preparation for a traditional differential-equations class or as supplemental material for students currently in such a class. It is highly visual with dozens of cartoon illustrations, dozens of MatLab graphs, dozens of tables, and dozens of other images throughout its 310 color pages as well as many correlative applets found on the internet that can be used to supplement the text. Comprehension and understanding of ideas is emphasized over symbol manipulation, although the latter is covered. Topics covered include definitions; Euler's method; separable, logistic, linear, exact, Bernoulli, and homogenous equations; slope fields; eigenvalues, eigenvectors, and eigenlines; solving systems of differential equations; Laplace transforms; and more.Binding Type: Paperback
Publisher: WWW.Mathlogarithms.com
Published: 06/15/2016
ISBN: 9780983397366
Pages: 320
Weight: 2.20lbs
Size: 11.02h x 8.50w x 0.87d
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★★★★★ 4
Great deal, my face loves them
Love these and got them on a great deal! The retinol and vitamin c my face loves!! The hylalonic acid seems super similar to the vitamin c in formula, I use that one less.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
My Skin Looks Brighter and More Hydrated
I use the vitamin C and hyaluronic acid in the morning after I wash my face, and then I use the retinol at night followed by my moisturizer. This routine has made a noticeable difference in my skin.
I especially see it under my eyes and with my crow’s feet. My skin looks more hydrated, brighter, and overall healthier. On days I forget to bring the serums with me when I travel, I can actually tell. My skin feels more dehydrated and just looks more dull.
When I’m consistent, my face looks more plump, glowy, and hydrated. That alone tells me these are working.
They are also very lightweight and not greasy or oily at all. They absorb quickly into the skin and do not have a strong smell, which I really appreciate.
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Would highly recommend
I was looking for something new and not crazy expensive. I have been using for 3 weeks now and I seeing good results. My skin is looking hydrated and feels awesome. I did also purchase the brightening moisturizer in addition to the serums as well as a night cream for my evening routine. Will continue to purchase. I do see that the droppers can stick but nothing that prevents you from using the product. There is very little scent which is a plus for my liking.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Affordable
Great products it is diffidently great for your face!
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Reviewed in the United States on May 19, 2026
★★★★★ 3
Dried skin
Dried my skin out.
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Reviewed in the United States on April 26, 2026
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