initial commit / add all books

40 files changed, 254 insertions, 0 deletions

diff --git a/3838/CH3/EX3.1.A/EX3_1_a.sce b/3838/CH3/EX3.1.A/EX3_1_a.sce
new file mode 100644
index 000000000..fd1c6d887
--- /dev/null
+++ b/3838/CH3/EX3.1.A/EX3_1_a.sce
@@ -0,0 +1,6 @@
+//Example 3.1.A

+clc;

+Syms s t;

+A=3

+laplace(A,t,s)

+

diff --git a/3838/CH3/EX3.1.B/EX3_1_b.sce b/3838/CH3/EX3.1.B/EX3_1_b.sce
new file mode 100644
index 000000000..30bb579eb
--- /dev/null
+++ b/3838/CH3/EX3.1.B/EX3_1_b.sce
@@ -0,0 +1,4 @@
+//EXAMPLE 3.1.B
+clc;
+Syms s t
+laplace(t,t,s)
diff --git a/3838/CH3/EX3.1.C/EX3_1_c.sce b/3838/CH3/EX3.1.C/EX3_1_c.sce
new file mode 100644
index 000000000..b1237874f
--- /dev/null
+++ b/3838/CH3/EX3.1.C/EX3_1_c.sce
@@ -0,0 +1,4 @@
+//EXAMPLE 3.1.C
+clc;
+Syms s t
+laplace(exp(-3*t),t,s)
diff --git a/3838/CH3/EX3.1.D/EX3_1_d.sce b/3838/CH3/EX3.1.D/EX3_1_d.sce
new file mode 100644
index 000000000..abfd394ca
--- /dev/null
+++ b/3838/CH3/EX3.1.D/EX3_1_d.sce
@@ -0,0 +1,4 @@
+//EXAMPLE 3.1.D
+clc;
+Syms s t
+laplace(-exp(-3*t),t,s)
diff --git a/3838/CH3/EX3.1.E/EX3_1_e.sce b/3838/CH3/EX3.1.E/EX3_1_e.sce
new file mode 100644
index 000000000..90d6010af
--- /dev/null
+++ b/3838/CH3/EX3.1.E/EX3_1_e.sce
@@ -0,0 +1,4 @@
+//EXAMPLE 3.1.E
+clc;
+Syms s t e
+e=laplace(exp(-4*t),t,s)-laplace(exp(4*t),t,s)
diff --git a/3838/CH3/EX3.12/EX3_12.sce b/3838/CH3/EX3.12/EX3_12.sce
new file mode 100644
index 000000000..e98e23000
--- /dev/null
+++ b/3838/CH3/EX3.12/EX3_12.sce
@@ -0,0 +1,6 @@
+//Example 3.12
+clc;
+syms s;
+I=2/((s)*(s+1)*(s+2));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.13/EX3_13.sce b/3838/CH3/EX3.13/EX3_13.sce
new file mode 100644
index 000000000..a310014b5
--- /dev/null
+++ b/3838/CH3/EX3.13/EX3_13.sce
@@ -0,0 +1,6 @@
+//Example 3.13
+clc;
+syms s;
+I=2/((s)*(s+1)*(s+2)^(2));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.14/EX3_14.sce b/3838/CH3/EX3.14/EX3_14.sce
new file mode 100644
index 000000000..1d071d656
--- /dev/null
+++ b/3838/CH3/EX3.14/EX3_14.sce
@@ -0,0 +1,6 @@
+//Example 3.14
+clc;
+syms s;
+I=1/((s+2)*(((s)^(2))+s+1));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.15/EX3_15.sce b/3838/CH3/EX3.15/EX3_15.sce
new file mode 100644
index 000000000..740adf8e9
--- /dev/null
+++ b/3838/CH3/EX3.15/EX3_15.sce
@@ -0,0 +1,6 @@
+//Example 3.15
+clc;
+syms s;
+I=4/((s^(2))*(s^(2)+16));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.16.a/EX3_16_A.sce b/3838/CH3/EX3.16.a/EX3_16_A.sce
new file mode 100644
index 000000000..3e360c6f3
--- /dev/null
+++ b/3838/CH3/EX3.16.a/EX3_16_A.sce
@@ -0,0 +1,6 @@
+//Example 3.16.A
+clc;
+syms s;
+I=(3*s^(2)+8*s+23)/((s+3)*(s^(2)+2*s+10));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.16.b/EX3_16_B.sce b/3838/CH3/EX3.16.b/EX3_16_B.sce
new file mode 100644
index 000000000..1092d7803
--- /dev/null
+++ b/3838/CH3/EX3.16.b/EX3_16_B.sce
@@ -0,0 +1,6 @@
+//Example 3.16.B
+clc;
+syms s;
+I=(8*(s^(2)))/((s+2)*(s+1)^(3));
+i=ilaplace(I);
+disp(i);
diff --git a/3838/CH3/EX3.2.A/EX3_2_A.sce b/3838/CH3/EX3.2.A/EX3_2_A.sce
new file mode 100644
index 000000000..e5637157d
--- /dev/null
+++ b/3838/CH3/EX3.2.A/EX3_2_A.sce
@@ -0,0 +1,5 @@
+//EXAMPLE 3.2.A
+clc;
+Syms s t
+w=2;
+laplace(sin(w*t),t,s)
diff --git a/3838/CH3/EX3.2.b/EX3_2_B.sce b/3838/CH3/EX3.2.b/EX3_2_B.sce
new file mode 100644
index 000000000..9a1bb0ccb
--- /dev/null
+++ b/3838/CH3/EX3.2.b/EX3_2_B.sce
@@ -0,0 +1,5 @@
+//EXAMPLE 3.2.B
+clc;
+Syms s t
+w=2;
+laplace(cos(w*t),t,s)
diff --git a/3838/CH3/EX3.2.c/EX3_2_C.sce b/3838/CH3/EX3.2.c/EX3_2_C.sce
new file mode 100644
index 000000000..34a02be95
--- /dev/null
+++ b/3838/CH3/EX3.2.c/EX3_2_C.sce
@@ -0,0 +1,5 @@
+//EXAMPLE 3.2.C
+clc;
+Syms s t
+w=2;
+laplace(cosh(w*t),t,s)
diff --git a/3838/CH3/EX3.2.d/EX3_2_D.sce b/3838/CH3/EX3.2.d/EX3_2_D.sce
new file mode 100644
index 000000000..fb0a99fba
--- /dev/null
+++ b/3838/CH3/EX3.2.d/EX3_2_D.sce
@@ -0,0 +1,7 @@
+//EXAMPLE 3.2.D
+clc;
+Syms s t
+w=2;
+a=5;
+F=exp(-a*t)*sin(w*t)
+laplace(F,t,s)
diff --git a/3838/CH3/EX3.2.e/EX3_2_E.sce b/3838/CH3/EX3.2.e/EX3_2_E.sce
new file mode 100644
index 000000000..d42d041ed
--- /dev/null
+++ b/3838/CH3/EX3.2.e/EX3_2_E.sce
@@ -0,0 +1,7 @@
+//EXAMPLE 3.2.E
+clc;
+Syms s t
+w=2;
+a=5;
+F=exp(-a*t)*cos(w*t)
+laplace(F,t,s)
diff --git a/3838/CH3/EX3.22/EX3_22.sce b/3838/CH3/EX3.22/EX3_22.sce
new file mode 100644
index 000000000..df1d08bff
--- /dev/null
+++ b/3838/CH3/EX3.22/EX3_22.sce
@@ -0,0 +1,8 @@
+//Example 3.22
+clc;
+syms s t;
+x=laplace(exp(-2*t)*cos(3*t),t,s);
+y=laplace(4*sin(3*t),t,s);
+z=x*y
+i=ilaplace(z);
+disp(i);
diff --git a/3838/CH3/EX3.24.a/EX3_24_A.sce b/3838/CH3/EX3.24.a/EX3_24_A.sce
new file mode 100644
index 000000000..26a01bc1d
--- /dev/null
+++ b/3838/CH3/EX3.24.a/EX3_24_A.sce
@@ -0,0 +1,5 @@
+//Example 3.24.a
+clc;
+Syms s t;
+x=laplace(((2+t)*(exp(-3*t)),t,s);
+disp(x);
diff --git a/3838/CH3/EX3.24.b/EX3_24_B.sce b/3838/CH3/EX3.24.b/EX3_24_B.sce
new file mode 100644
index 000000000..841c34f87
--- /dev/null
+++ b/3838/CH3/EX3.24.b/EX3_24_B.sce
@@ -0,0 +1,5 @@
+//Example 3.24.B
+clc;
+Syms s t;
+x=laplace((t^(2)-exp(-4*t)+exp(-7*t)),t,s);
+disp(x);
diff --git a/3838/CH3/EX3.24.c/EX3_24_C.sce b/3838/CH3/EX3.24.c/EX3_24_C.sce
new file mode 100644
index 000000000..bec5984b7
--- /dev/null
+++ b/3838/CH3/EX3.24.c/EX3_24_C.sce
@@ -0,0 +1,5 @@
+//Example 3.24.C
+clc;
+Syms s t;
+x=laplace((1+0.5*exp(-6*t)+0.2*exp(-3*t)),t,s);
+disp(x);
diff --git a/3838/CH3/EX3.25.a/EX3_25_A.sce b/3838/CH3/EX3.25.a/EX3_25_A.sce
new file mode 100644
index 000000000..3d7c74d18
--- /dev/null
+++ b/3838/CH3/EX3.25.a/EX3_25_A.sce
@@ -0,0 +1,6 @@
+//EXAMPLE 3.25.A
+clc;
+Syms s,t;
+u=laplace(1,t,s)+laplace(exp(-2*t),t,s);0
+F=u*laplace(1,t,s)
+disp(F);
diff --git a/3838/CH3/EX3.25.b/EX3_25_B.sce b/3838/CH3/EX3.25.b/EX3_25_B.sce
new file mode 100644
index 000000000..e15a27ee9
--- /dev/null
+++ b/3838/CH3/EX3.25.b/EX3_25_B.sce
@@ -0,0 +1,6 @@
+//EXAMPLE 3.25.b
+clc;
+Syms s,t;
+u=laplace((t)^(2),t,s)+laplace(t*exp(-4*t),t,s);
+F=u*laplace(1,t,s)
+disp(F);
diff --git a/3838/CH3/EX3.25.c/EX3_25_C.sce b/3838/CH3/EX3.25.c/EX3_25_C.sce
new file mode 100644
index 000000000..757a00ef8
--- /dev/null
+++ b/3838/CH3/EX3.25.c/EX3_25_C.sce
@@ -0,0 +1,6 @@
+//EXAMPLE 3.25.c
+clc;
+Syms s,t;
+u=laplace(t,t,s)+laplace(sin(t),t,s);
+F=u*laplace(1,t,s)
+disp(F);
diff --git a/3838/CH3/EX3.26.a/EX3_26_A.sce b/3838/CH3/EX3.26.a/EX3_26_A.sce
new file mode 100644
index 000000000..dec17118f
--- /dev/null
+++ b/3838/CH3/EX3.26.a/EX3_26_A.sce
@@ -0,0 +1,6 @@
+//Example 3.26.A
+clc;
+syms s;
+F=1/(s^(2)*(s-2));
+f=ilaplace(F);
+disp(f);
diff --git a/3838/CH3/EX3.26.b/EX3_26_B.sce b/3838/CH3/EX3.26.b/EX3_26_B.sce
new file mode 100644
index 000000000..8bb058fb7
--- /dev/null
+++ b/3838/CH3/EX3.26.b/EX3_26_B.sce
@@ -0,0 +1,6 @@
+//Example 3.26.B
+clc;
+syms s;
+F=1/(s*(s+1)*(s-2));
+f=ilaplace(F);
+disp(f);
diff --git a/3838/CH3/EX3.26.c/EX3_26_C.sce b/3838/CH3/EX3.26.c/EX3_26_C.sce
new file mode 100644
index 000000000..b1431f1ae
--- /dev/null
+++ b/3838/CH3/EX3.26.c/EX3_26_C.sce
@@ -0,0 +1,6 @@
+//Example 3.26.c
+clc;
+syms s;
+F=1/(s^(2)+s+1);
+f=ilaplace(F);
+disp(f);
diff --git a/3838/CH3/EX3.27.a/EX3_27_A.sce b/3838/CH3/EX3.27.a/EX3_27_A.sce
new file mode 100644
index 000000000..fd8bf3a64
--- /dev/null
+++ b/3838/CH3/EX3.27.a/EX3_27_A.sce
@@ -0,0 +1,9 @@
+//Example 3.27.A
+clc;
+a=2;
+syms s t;
+y=laplace(exp(-a*t));
+z=1*y;
+f=ilaplace(z);
+disp(f);
++9
diff --git a/3838/CH3/EX3.27.b/EX3_27_B.sce b/3838/CH3/EX3.27.b/EX3_27_B.sce
new file mode 100644
index 000000000..067e2d272
--- /dev/null
+++ b/3838/CH3/EX3.27.b/EX3_27_B.sce
@@ -0,0 +1,8 @@
+//Example 3.27.B
+clc;
+syms s t;
+x=laplace(exp(-2*t));
+y=laplace(1);
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.28.B/EX3_28_B.sce b/3838/CH3/EX3.28.B/EX3_28_B.sce
new file mode 100644
index 000000000..4e21ae86b
--- /dev/null
+++ b/3838/CH3/EX3.28.B/EX3_28_B.sce
@@ -0,0 +1,8 @@
+//Example 3.28.B
+clc;
+syms s t;
+x=laplace(exp(-2*t));
+y=laplace(exp(-5*t));
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.28.C/EX3_28_C.sce b/3838/CH3/EX3.28.C/EX3_28_C.sce
new file mode 100644
index 000000000..3ba0be3ce
--- /dev/null
+++ b/3838/CH3/EX3.28.C/EX3_28_C.sce
@@ -0,0 +1,8 @@
+//Example 3.28.c
+clc;
+syms s t;
+x=laplace(t);
+y=laplace(exp(-5*t));
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.28.D/EX3_28_D.sce b/3838/CH3/EX3.28.D/EX3_28_D.sce
new file mode 100644
index 000000000..94f5967bc
--- /dev/null
+++ b/3838/CH3/EX3.28.D/EX3_28_D.sce
@@ -0,0 +1,8 @@
+//Example 3.28.D
+clc;
+syms s t;
+x=laplace(cos(t));
+y=laplace(t);
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.28.a/EX3_28_A.sce b/3838/CH3/EX3.28.a/EX3_28_A.sce
new file mode 100644
index 000000000..2c16c96f9
--- /dev/null
+++ b/3838/CH3/EX3.28.a/EX3_28_A.sce
@@ -0,0 +1,8 @@
+//Example 3.28.A
+clc;
+syms s t;
+x=laplace(2);
+y=laplace(1);
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.29.A/EX3_29_a.sce b/3838/CH3/EX3.29.A/EX3_29_a.sce
new file mode 100644
index 000000000..0e28729a6
--- /dev/null
+++ b/3838/CH3/EX3.29.A/EX3_29_a.sce
@@ -0,0 +1,8 @@
+//Example 3.29.A
+clc;
+syms s t;
+x=laplace(2);
+y=laplace(1);
+z=x/y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.29.B/EX3_29_b.sce b/3838/CH3/EX3.29.B/EX3_29_b.sce
new file mode 100644
index 000000000..8fd7f9ed4
--- /dev/null
+++ b/3838/CH3/EX3.29.B/EX3_29_b.sce
@@ -0,0 +1,8 @@
+//Example 3.29.b
+clc;
+syms s t;
+x=laplace((1/3)*(exp(-2*t)-exp(-5*t));
+y=laplace(exp(-5*t));
+z=x/y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.29.C/EX3_29_C.sce b/3838/CH3/EX3.29.C/EX3_29_C.sce
new file mode 100644
index 000000000..f6509b7a8
--- /dev/null
+++ b/3838/CH3/EX3.29.C/EX3_29_C.sce
@@ -0,0 +1,8 @@
+//Example 3.29.C
+clc;
+syms s t;
+x=laplace((1/25)*(exp(-5*t)+5*t-1));
+y=laplace(exp(-5*t));
+z=x/y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.29.D/EX3_29_D.sce b/3838/CH3/EX3.29.D/EX3_29_D.sce
new file mode 100644
index 000000000..e2c1a99eb
--- /dev/null
+++ b/3838/CH3/EX3.29.D/EX3_29_D.sce
@@ -0,0 +1,8 @@
+//Example 3.29.d
+clc;
+syms s t;
+x=laplace(1-cos(t));
+y=laplace(t);
+z=x/y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.30.A/EX3_30_A.sce b/3838/CH3/EX3.30.A/EX3_30_A.sce
new file mode 100644
index 000000000..35351849b
--- /dev/null
+++ b/3838/CH3/EX3.30.A/EX3_30_A.sce
@@ -0,0 +1,8 @@
+//Example 3.30.A
+clc;
+syms s t;
+x=laplace(3*t);
+y=laplace(1);
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.30.B/EX3_30_B.sce b/3838/CH3/EX3.30.B/EX3_30_B.sce
new file mode 100644
index 000000000..57c373252
--- /dev/null
+++ b/3838/CH3/EX3.30.B/EX3_30_B.sce
@@ -0,0 +1,8 @@
+//Example 3.30.B
+clc;
+syms s t;
+x=laplace(exp(-5*t));
+y=laplace(1);
+z=x*y;
+f=ilaplace(z);
+disp(f);
diff --git a/3838/CH3/EX3.7.a/EX3_7_A.sce b/3838/CH3/EX3.7.a/EX3_7_A.sce
new file mode 100644
index 000000000..5db94c23d
--- /dev/null
+++ b/3838/CH3/EX3.7.a/EX3_7_A.sce
@@ -0,0 +1,5 @@
+//example 3.7.a
+clc;
+Syms s t
+F=(t^(2)-2*t)*unit_step(t-1)
+laplace(F,t,s)
diff --git a/3838/CH3/EX3.7.b/EX3_7_B.sce b/3838/CH3/EX3.7.b/EX3_7_B.sce
new file mode 100644
index 000000000..13a1e2a7d
--- /dev/null
+++ b/3838/CH3/EX3.7.b/EX3_7_B.sce
@@ -0,0 +1,6 @@
+//example 3.7.b
+clc;
+Syms s t
+a=5;
+F=(t-a)*unit_step(t-a)
+laplace(F,t,s)