public AstNodeStm Vmmov() => MatVd.SetMatrix((column, row) => MatVs[column, row], _pc);
public AstNodeStm Vmscl() => MatVd.SetMatrix((column, row) => MatVs[column, row] * CelVt.Get(), _pc);
public AstNodeStm Vmzero() => MatVd.SetMatrix((column, row) => 0f, _pc);
public AstNodeStm Vmone() => MatVd.SetMatrix((column, row) => 1f, _pc);
public AstNodeStm Vmidt() => MatVd.SetMatrix((column, row) => (column == row) ? 1f : 0f, _pc);