# Write about TWO important mathematical books/publications (give author, title, short

Write about TWO important mathematical books/publications (give author, title, short content description) from EACH of the following 2time periods so a total of 4 publications/books.
1300-1750; and 1750-2000.
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Step 1
$Given:-$
The two important mathematical books/publications ( give author,title, short content description) from each of the two time periods so a total of four publications/books.
Time periods are 1300 - 1750 and 1750-2000.
Step 2 $Solution:-$
$B\mathrm{\infty }ks\mathfrak{o}m$
$Auth\phantom{\rule{1em}{0ex}}\text{or}\phantom{\rule{1em}{0ex}}-$ Madhava
$Nationality:-$ Indian
$Description:-$ Use of Infinite series of fractions to give an exact formula for $\pi$ , Sine formula and other trigonometric functions , Important step towards the development of calculus.
$Auth\phantom{\rule{1em}{0ex}}\text{or}\phantom{\rule{1em}{0ex}}:-$ Lodovico Ferrari
$Nationality:-$ Italian
$Description:-$ Devised formula for solution of quadratic equations.
$B\mathrm{\infty }ks\mathfrak{o}m$ $1750-2000$
$Auth\phantom{\rule{1em}{0ex}}\text{or}\phantom{\rule{1em}{0ex}}:-$ Joseph Louis Lagrange
$Nationality:-$ Italian/French
$Description:-$ Comprehensive treatment of classical and celestial mechanics, calculus of variations, Lagranges