Calculus Made Easy S. P. Thompson
SUMS, DIFFERENCES, PRODUCTS AND
QUOTIENTS.
Wk have learned how to differentiate simple algebraical functions such
as x2 + c or «j4, and we have now to consider how to tackle the sum
of two or more functions.
For instance, let
y = (x2 + c) + (ax4 + b)-,
dy
what will its — be? IIow arc we to go to work on this new job?
ax
Calculus Made Easy
Silvanus P. Thompson
And we shall have:
y -f dy = ti + du + v + dv.
LibriVox
Calculus Made Easy
Silvanus P. Thompson
Calculus Made Easy: Being a Very-Simplest Introduction to Those Beautiful
Methods of Reckoning which Are Generally Called by the Terrifying Names of the
Differential Calculus and the Integral Calculus is is a book on infinitesimal calculus
originally published in 1910 by Silvanus P. Thompson, considered a classic and
elegant introduction to the subject.
Some calculus-tricks are quite easy. Some are enormously difficult. The fools who
write the textbooks of advanced mathematics — and they are mostly clever fools —
seldom take the trouble to show you how easy the easy calculations are. On the
contrary, they seem to desire to impress you with their tremendous cleverness by
going about it in the most difficult way. Being myself a remarkably stupid fellow, I
have had to unteach myself the difficulties, and now beg to present to my fellow
fools the parts that are not hard. Master these thoroughly, and the rest will follow.
What one fool can do, another can.
Total running time 10:07:27
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Calculus Made Easy S. P. Thompson
