Mastering Excel goes far beyond SUM and VLOOKUP. By learning functions like COUNT, AVERAGE, SUMIF, SUBTOTAL, XLOOKUP, and INDEX/MATCH, you can find opportunities to improve your Excel sheet. Some ...

The C and C++ standards do not specify the order of evaluation for function arguments. This can lead to subtle portability problems. As I explained in my column last month (“As Precise As Possible”), ...

We present and compare several algorithms for evaluating Jacquet's Whittaker functions for SL(3,ℤ). The most suitable algorithm is then applied to the problem of evaluating a Maass form for SL(3,ℤ) ...