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johnnyb

I like to write and teach. I wrote a calculus book which I'm particularly proud of, Calculus from the Ground Up (a solution guide is also available). You can check out my research on a variety of subjects here. See the rest of my books on my Amazon author page..

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9 What is the value for $\lim_{x\to\infty} \frac{\sin x}{x}$? Jan 10 '16
8 Why can't we write sin x as $(\sin x)^1$ and use the formula for derivative of $x^n?$ (11th grade) Feb 7 '20
4 Physical Calculator with Hyperreals and Multiple Dimensions? Feb 1 '18
4 Why do we use base $e$ in population growth questions? Mar 2 '18
4 Adding differentials Jul 8 '20
3 Solving $y = \frac{x}{1-x} $ for $x$ Oct 22 '20
3 Integral of d²x? Mar 2 '18
3 Area enclosed between 3 curves Feb 27 '18
3 Rectangle under a parabola. Jan 28 '16
3 Can $\dot x = \sin x$ be equivalently written as $x'(t) = \sin(x(t))$? Nov 21 '19
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