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.
Roosevelt's Executive Order 9066 signed in February 19, 1942 forced American citizens of Japanese heritage into internment camps. These Japanese Americans suffered as detainee's in poor living conditions and their constitutional rights were suspended.