10t₁ + t₂ + t₃
11Meetkundige reeks
12 reeks_(1)
20reeks_(2)
21reeks_(3)
22reeks_(4)
23reeks_(5)
24reeks_(6)
25twee reeksen
261,23030303030...→ a / b
27t_n = 1.2.3.5....(2n+1)
28rij ln2,ln4,ln8,..
29rij (recursief)
30RR en MR
310,636363...
32\(\frac 13 - \frac 19 + \frac1{27} - \cdots \)
33\(\small 1\!-\!\frac 15\!+ \cdots +(-1)^{n-1}\!\frac{1}{5^{n-1}}+\cdots \)
34\(\small \displaystyle \sum_{n=1}^{+\infty}\: \frac{3^n-2^n}{4^n}\)
35
36
37lim  u_n+1 / u_n
38rijen rekenkundig ?
39
403de term (rec.def)
415de term rij

50\(\small\frac 23\!+\!1\!+\!\frac 49\!+\!\frac12\!+\!\frac 8{27}\!+\!\frac 14\!+\!\frac{16}{81}\!+\!\frac18\!+\cdots\)
51\(\scriptsize\sqrt{n},\sqrt{n+\sqrt n},\sqrt{n+\sqrt{n+\sqrt n}},\cdots \)
52\(\frac 1{10}+\frac 2{100}+\frac 3{1000}+\frac 4{10000}+\cdots\)
53\(\small\frac 1x\!+\!x\!+\!x^2\!+\!x^3\!+\cdots +x^n\!+\cdots =5\)
54log 1 + log  + log  + ... + log  + ...
C3Rij van PADOVAN