ahmedazizkhelifi · April 3, 2020 20:19
diff --git a/sum.tex b/sum.tex
 Sum from 0 to +inf:

 $$\sum_{j=0}^{+\infty} A_{j}$$

 Double sum:
 $$\sum^k_{i=1}\sum^{l+1}_{j=1}\,A_i A_j$$	


 Taylor expansion of $e^x$:
 $$ e^x  = \sum_{k=0}^{n}\, \frac{x^k}{k!} + o(x^n) $$
	Sum from 0 to +inf:

	$$\sum_{j=0}^{+\infty} A_{j}$$

	Double sum:
	$$\sum^k_{i=1}\sum^{l+1}_{j=1}\,A_i A_j$$


	Taylor expansion of $e^x$:
	$$ e^x = \sum_{k=0}^{n}\, \frac{x^k}{k!} + o(x^n) $$