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Diffstat (limited to 'Linear_Algebra_by_Jim_Hefferon/CH4/EX1.7')
| -rw-r--r-- | Linear_Algebra_by_Jim_Hefferon/CH4/EX1.7/Ex4_1_7.R | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Linear_Algebra_by_Jim_Hefferon/CH4/EX1.7/Ex4_1_7.R b/Linear_Algebra_by_Jim_Hefferon/CH4/EX1.7/Ex4_1_7.R new file mode 100644 index 00000000..e770d76f --- /dev/null +++ b/Linear_Algebra_by_Jim_Hefferon/CH4/EX1.7/Ex4_1_7.R @@ -0,0 +1,13 @@ +#Example 1.7,chapter 4,Section III. Laplace's Formula,page 355
+#package used matlib v0.9.1 and pracma
+#Github reposiory of matlib :https://github.com/friendly/matlib
+
+#installation and loading library
+#install.packages("matlib")
+library("matlib")
+
+#program
+t <- matrix(c(1,2,3,5,1,-1,0,1,0),ncol = 3)
+#computing the determinant by expanding along the third column.
+y <- t[1,3]*cofactor(t,1,3)+t[2,3]*cofactor(t,2,3)+t[3,3]*cofactor(t,3,3)
+y
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