>Function that returns the grade Projection between a Blade and an Integer.</p><p><strong>Arguments</strong></p><ul><li><code>vec::Blade</code> : A Blade.</li><li><code>k::Int</code> : An integer to the Grade Projection</li></ul><p><strong>Return</strong></p><p>The result Blade. It might be the 1D blade &quot;1&quot;</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/VitorLorencone/Mingal.jl/blob/23c7cee3c6a1e95f7876863887845b40ae4c6ec0/src/GaFunctions.jl#L77-L89">source</a></secti