%0 Journal Article %T A vectorial form of the Schr£żdinger equation %A Guy Barrand %J Physics %D 2014 %I arXiv %X We rewrite the time dependent Schr\"odinger equation by using only three dimensional vector algebra and by avoiding to introduce any complex numbers. We show that this equation leads to the same conclusions than the "complex version" concerning the hydrogen atom and the harmonic oscillator. We show also that this equation can be written as a Maxwell-Amp\`ere equation. %U http://arxiv.org/abs/1406.1872v1