MR 01 Loesung

Lösung in Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \C}

Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle {\begin{array}{c c c c c}f_{1}(z)&=&{\frac {\left|z\right|^{2}}{z}}&=&{\bar {z}}\\f_{2}(z)&=&{\frac {i\left|z\right|^{2}}{z}}&=&\Re <>\Im (z)\\f_{3}(z)&=&{\frac {z^{2}+\left|z\right|^{2}}{2z}}&=&\Re (z)\\f_{4}(z)&=&{\frac {z^{2}-\left|z\right|^{2}}{2z}}&=&\Im (z)\\\end{array}}}