1 files changed, 18 insertions, 0 deletions
diff --git a/257/CH8/EX8.15/example_8_15.sce b/257/CH8/EX8.15/example_8_15.sce
new file mode 100644
index 000000000..53f97fd04
--- /dev/null
+++ b/257/CH8/EX8.15/example_8_15.sce
@@ -0,0 +1,18 @@
+s=%s
+F=2*s^5+s^4+6*s^3+s+1
+
+disp(routh_t(F)) 
+r=coeff(F)
+routh=routh_t(F)
+n=length(r)
+c=0;
+for i=1:n
+if (routh(i,1)<0)
+c=c+1;
+ end 
+  end
+  if(c>=1)
+    printf("system is unstable")
+  else printf("there are no roots on RHS")
+  end
+