sabs="false" fullComment="yes" group="Ungrouped">
      <a id="altMatConstructor(r:Int,c:Int,arr:Array[org.saddle.Vec[T]])(implicitst:org.saddle.ST[T]):org.saddle.Mat[T]"></a>
      <a id="altMatConstructor(Int,Int,Array[Vec[Double]])(ST[Double]):Mat[Double]"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span class="name">altMatConstructor</span><span class="