This is the Średnia - Matematyka icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
The icon looks very similar to a square that has been rotated 45 degrees in the shape of a diamond. The square was then split from the top corner to the bottom corner and the two pieces were pulled apart.