How about this? SAMPLE OCTAVE INPUT FILE: #!/usr/bin/octave -q diary matrix1.txt %matrix1.m MrG 2009.0527 %purpose: practice with matrix arithmetic
%initialize 2 matrices of dimension 2x2 a=[1 5;-1 2] b=[-2 1;1 1] %matrix sums c=a+b d=b-a %matrix products e=a*b f=b*a g=a**2 h=b**3 %matrix inverses i=a**(-1) j=b**(-1) %matrix determinants k=det(a) l=det(b) SAMPLE OCTAVE OUTPUT FILE: a = 1 5 -1 2 b = -2 1 1 1 c = -1 6 0 3 d = -3 -4 2 -1 e = 3 6 4 1 f = -3 -8 0 7 g = -4 15 -3 -1 h = -11 4 4 1 i = 0.28571 -0.71429 0.14286 0.14286 j = -0.33333 0.33333 0.33333 0.66667 k = 7 l = -3 HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-...@googlegroups.com. To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en.