initial commit / add all books

1 files changed, 22 insertions, 0 deletions

diff --git a/692/CH2/EX2.31/P2_31.sce b/692/CH2/EX2.31/P2_31.sce
new file mode 100755
index 000000000..f596eea0c
--- /dev/null
+++ b/692/CH2/EX2.31/P2_31.sce
@@ -0,0 +1,22 @@
+//EXAMPLE 2.31, Stability for causal system.
+//h[i]=impulse response of LTI system.
+clear;
+clc;
+n= -5:0.001:5;
+a=0.6;
+
+for i=1:length(n)
+    if (n(i)<0)
+        h(i)=0;
+    else
+        h(i)=abs(a^n(i));
+        
+    end
+end
+S=sum(h);
+if(S<%inf)
+    disp('BIBO stable system');
+else
+    disp('BIBO unstable system');
+    
+end