UF Sparse Matrix Collection: MathWorks group.

matrix	graph	Group/Name	id	download	# rows	# cols	nonzeros	type	sym	spd?
		MathWorks/Harvard500	1172	MAT, MM, RB	500	500	2,636	binary unsymmetric	41%	no
		MathWorks/Kaufhold	1404	MAT, MM, RB	8,765	8,765	42,471	real unsymmetric	78%	no
		MathWorks/Kuu	1330	MAT, MM, RB	7,102	7,102	340,200	real symmetric	yes	yes
		MathWorks/Muu	1331	MAT, MM, RB	7,102	7,102	170,134	real symmetric	yes	yes
		MathWorks/Pd	1170	MAT, MM, RB	8,081	8,081	13,036	real unsymmetric	0%	no
		MathWorks/Pd_rhs	1171	MAT, MM, RB	8,081	12,406	6,323	real rectangular	-	no
		MathWorks/pivtol	861	MAT, MM, RB	102	102	306	real unsymmetric	0%	no
		MathWorks/QRpivot	1894	MAT, MM, RB	660	749	3,808	real rectangular	-	no
		MathWorks/Sieber	1378	MAT, MM, RB	2,290	2,290	14,873	real unsymmetric	0%	no
		MathWorks/tomography	1328	MAT, MM, RB	500	500	28,726	real unsymmetric	93%	no
		MathWorks/TS	2256	MAT, MM, RB	2,142	2,142	45,262	real unsymmetric	4%	no

Maintained by Tim Davis, last updated 10-Jun-2015.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
See UFget to download directly into MATLAB.