Pic2Mag vs Pocket MRS

The user draws the magnets and the Pic2Mag program draws the magnetic fields. The Field Calculator program now has a Magnetostatic mode, and an Electrostatic mode to plot either magnetic fields or electric fields. The program designed to help students learn Magnetic fields and Electric fields. You can draw magnets and look at the magnetic field, or you can draw electric charges and look at the electric voltage field. The best free magnetic science program you can download! No advertisements, it's just all app. The app can process most images in just a few minutes. The app caches it's results so the more that you use it, the faster the program processes images. Red pixels represent magnets with a North pole surface facing the observer, and Blue pixels represent magnets with a South pole surface facing the observer. Pink pixels represent positive electric charges, and Dark Purple pixels represent negative electric charges

Pocket MRS was designed to be a fast and versatile electronic reference and educational tool for students, medical professionals, researchers and anybody else engaged in the field of in vivo magnetic resonance spectroscopy (MRS). Pocket MRS is a mobile application that offers simple and easy access to simulated spectra from the human brain and its detailed analysis. Spectra available from 0 to 300 ms TE were obtained using realistic quantum mechanical density operator simulations, and then scaled using known concentration, T1 and T2 values across 19 different metabolites and the sum of 10 macromolecules. Spectra can be manipulated with respect to echo time, magnetic field quality and noise levels, providing quick and convenient visualization of the impact of typical experimental conditions on spectral appearance. The app can be a quick digital reference and valuable help for the MRS community when desktop computers and extended MRS software tools are not available.