initial commit / add all books

2 files changed, 27 insertions, 0 deletions

diff --git a/659/CH9/EX9.5/exm9_5.sci b/659/CH9/EX9.5/exm9_5.sci
new file mode 100755
index 000000000..e97f8e561
--- /dev/null
+++ b/659/CH9/EX9.5/exm9_5.sci
@@ -0,0 +1,27 @@
+//             Example 9.5 

+//Write a program to calculate standard deviation of an array values.

+//Array elements are read from terminal.Use functions to calulate- 

+//standard deviation and mean 

+funcprot(0);

+//passing array named 'value' to function std_dev at 'a'

+function[std]=std_dev(a,n)

+    sum1=0;

+    x=mean1(a,n);                      //calling mean1() function

+    for i=1:n

+      sum1=sum1+(x-a(i))^2;

+      std=sqrt(sum1/double(n));        //computes standard deviation

+    end

+endfunction

+function[x]=mean1(a,n)

+    sum1=0;

+    for i=1:n

+      sum1=sum1+a(i);

+      x=sum1/double(n);                 //x contain mean value

+    end

+endfunction

+SIZE=int8(5);                           //size of array

+printf("Enter %d float values",SIZE); 

+for i=1:SIZE

+    value(i)=input(" ");                 //entering values in the array

+end

+printf("Std.deviation is %f",std_dev(value,SIZE)); //calling std_dev() function
\ No newline at end of file
diff --git a/659/CH9/EX9.5/exm9_5_output.PNG b/659/CH9/EX9.5/exm9_5_output.PNG
new file mode 100755
index 000000000..9c7dc68cc
--- /dev/null
+++ b/659/CH9/EX9.5/exm9_5_output.PNG