1 files changed, 29 insertions, 0 deletions
diff --git a/28/CH3/EX3.3.g/ex3_3_6.sce b/28/CH3/EX3.3.g/ex3_3_6.sce
new file mode 100755
index 000000000..0e780d76d
--- /dev/null
+++ b/28/CH3/EX3.3.g/ex3_3_6.sce
@@ -0,0 +1,29 @@
+// for open loop
+syms t g s;
+s=%s;
+K1=50;
+K=1.5;
+g=20;
+V=syslin('c',((K1*K)*0.8)/(s*((g*s)+1)))
+// taking inverse laplace
+v=ilaplace(V,s,t)
+v=60(11-%e^(-t/20))
+// given v=90%
+v=0.9;
+t=-20*log(1-v);
+disp(t,"time open=")
+// for closed loop
+syms K' g'
+s=%s;
+V=syslin('c',(60.8*K')/(s*((g'*s)+1)))
+// taking inverse laplace
+v=ilaplace(V,s,t)
+// given 
+K'=75/76; 
+g'=.263;
+v=60(1-%e^(-t/.263))
+// at v=90%
+v=0.9;
+t=-.263*log(1-(v/60));
+disp(t,"time closed=")
+