资源环境科技发展态势分析平台

Since the ’60s of the last century, the calculation of the magnetic anomalies caused by 2D uniformly‐polarized bodies with polygonal cross‐section has been mainly performed using the popular algorithm of Talwani & Heirtzler (1962, 1964). Recently, Kravchinsky et al. (2019) claimed errors in the above algorithm formulation, proposing new corrective formulas and questioning the effectiveness of almost sixty years of magnetic calculations. Here we show that the two approaches are equivalent and Kravchinsky et al.’s formulas simply represent an algebraic variant of those of Talwani & Heirtzler. Moreover, we analyze a large amount of random magnetic scenarios, involving both changing‐shape polygons and a realistic geological model, showing a complete agreement among the magnetic responses of the two discussed algorithms and the one proposed by Won & Bevis (1987). We release the source code of the algorithms in Julia and Python languages.