initial commit / add all books

1 files changed, 20 insertions, 0 deletions

diff --git a/3831/CH18/EX18.7/Ex18_7.sce b/3831/CH18/EX18.7/Ex18_7.sce
new file mode 100644
index 000000000..ec18ef7bc
--- /dev/null
+++ b/3831/CH18/EX18.7/Ex18_7.sce
@@ -0,0 +1,20 @@
+// Example 18_7

+clc;funcprot(0);

+// Given data

+N=10;// The number of available students

+R=5;// The number of ordered groups

+

+// Calculation

+// (a)

+P_a=(factorial(N))/(factorial(N-R));// P_using each student only once

+// (b)

+P_b=N^R;// P_using each student more than once

+// (c)

+P_c=(factorial(N))/(factorial(N-R)*factorial(R));// C_using each student only once

+// (d)

+P_d=(factorial(N+R-1))/(factorial(N-1)*factorial(R));// C_using each student more than once

+// (e)

+R_1=4;

+R_2=6

+P_e=(factorial(N))/((factorial(R_1))*(factorial(R_2)));

+printf("\n(a)P_using each student only once=%5.0f groups \n(b)P_using each student more than once=%5.0f groups \n(c)C_using each student only once=%3.0f groups \n(d)C_using each student more than once=%4.0f groups \n(e)P_4,6=%3.0f groups",P_a,P_b,P_c,P_d,P_e);