>> triangle_properties ( 'tex1.txt' ) 18-Jul-2009 20:42:52 TRIANGLE_PROPERTIES: MATLAB version: Determine properties of a triangle. Read the header of "tex1.txt". Spatial dimension DIM_NUM = 2 Number of points NODE_NUM = 3 Read the data in "tex1.txt". Node coordinates: Row: 1 2 Col 1 4.000000 1.000000 2 8.000000 3.000000 3 0.000000 9.000000 ANGLES (radians) 1 1.570796 2 1.107149 3 0.463648 ANGLES (degrees) 1 90.000000 2 63.434949 3 26.565051 AREA = 20.000000 CENTROID: 4.000000 4.333333 CIRCUM_RADIUS = 5.000000 CIRCUM_CENTER: 4.000000 6.000000 EDGE_LENGTHS 1 4.472136 2 10.000000 3 8.944272 IN_RADIUS = 1.708204 IN_CENTER: 4.763932 3.291796 ORIENTATION: CounterClockwise. ORTHO_CENTER: 4.000000 1.000000 QUALITY = 0.683282 TRIANGLE_PROPERTIES: Normal end of execution. 18-Jul-2009 20:42:52 >>