# sonystarmap

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 54 What's next in this number series? 12 why does this integral diverge? 9 Value of $\sum \limits_{k=1}^{81} \frac{1}{\sqrt{k} + \sqrt{k+1}} = \frac{1}{\sqrt{1} + \sqrt{2}} + \cdots + \frac{1}{\sqrt{80} + \sqrt{81}}$? 9 The Convergence of Jacobi and Gauss-Seidel methods 4 $\frac{d^2x}{dt^2} =3.$ Separation of variables

# 2,343 Reputation

 +25 Exist a function composed by simple continuous functions that $f:\Bbb R \rightarrow \Bbb N$? +48 $\frac{d^2x}{dt^2} =3.$ Separation of variables +20 Why do we interpolate - no guarantee of success +15 Find the roots of a polynomial in Matlab

# 2 Questions

 44 How much Math do you REALLY do in your job? 0 Interpretation of an integral involving two curves

# 77 Tags

 65 sequences-and-series × 8 8 pde × 7 33 numerical-methods × 27 8 analysis × 5 25 calculus × 12 7 matrices × 4 20 integration × 5 6 real-analysis × 10 16 differential-equations × 14 6 algebra-precalculus × 8

# 8 Accounts

 Mathematics 2,343 rep 721 Stack Overflow 139 rep 6 Ask Ubuntu 103 rep 2 Super User 101 rep Unix & Linux 101 rep