initial commit / add all books

1 files changed, 18 insertions, 0 deletions

diff --git a/70/CH3/EX3.3.2/3_3_2.sci b/70/CH3/EX3.3.2/3_3_2.sci
new file mode 100755
index 000000000..e11d64ede
--- /dev/null
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+//page 166
+clear;
+close;
+clc;
+disp('b=C+Dt');
+disp('Ax=b');
+A=[1 -1;1 1;1 2];
+disp(A,'A=');
+b=[1;1;3];
+disp(b,'b=');
+disp('If Ax=b could be solved then they would be no errors, they can''t be solved because the points are not on a line.Therefore they are solved by least squares.')
+disp('so,A''Ax^=A''b');
+x=zeros(1,2);
+x=(A'*A)\(A'*b);
+disp(x(1,1),'C^ =');
+disp(x(2,1),'D^=');
+disp('The best line is 9/7+4/7t')
+//end
\ No newline at end of file