S = sparse(A) converts a full matrix into sparse form by squeezing out any zero elements. If a matrix contains many zeros, converting the matrix to sparse storage saves memory. S = sparse(m,n) generates an m-by-n all zero sparse matrix.
Executive Order 9066 was a United States presidential executive order signed and issued during World War II by the United States President Franklin D. Roosevelt on February 19, 1942, authorizing the Secretary of War to prescribe certain areas as military zones.
A+E Networks. On this day in 1942, President Franklin D. Roosevelt signs Executive Order 9066, initiating a controversial World War II policy with lasting consequences for Japanese Americans.The document ordered the removal of resident enemy aliens from parts of the West vaguely identified as military areas.uring the war, the U.S. Supreme Court heard two cases challenging the constitutionality of Executive Order 9066, upholding it both times. Finally, on February 19, 1976, decades after the war, Gerald Ford signed an order prohibiting the executive branch from reinstituting the notorious and tragic World War II order.