Build Faster Excel Workflows Using FILTER, IFS, XLOOKUP, and LET for Real-World Data

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...
IEEE

High-Resolution Elastic Reverse-Time Migration Using the Point-Spread Function Deconvolution With Density Scatterers

Abstract: High-resolution and amplitude-preserved imaging is crucial for mapping impedance interfaces and identifying hydrocarbon reservoirs in the subsurface. Although elastic reverse-time migration ...
How-To Geek on MSN

Document formulas in Excel like code with N() function

The simplest way to start documenting Excel formulas like a coder is by using the N () function. Although its primary job is to convert non-numeric values into numbers, it has a hidden quirk: because ...
IEEE

Memory-Efficient Frequency-Domain Least-Squares RTM Using Low-Rank Green’s Functions via Stochastic SVD Algorithms

Abstract: Frequency-domain least-squares reverse time migration (FLSRTM) is capable of producing a high-resolution reflectivity model, provided that Green’s functions can be stored in memory. Green’s ...