initial commit / add all books

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diff --git a/24/CH2/EX2.1.c/Example2_1c.sce b/24/CH2/EX2.1.c/Example2_1c.sce
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+++ b/24/CH2/EX2.1.c/Example2_1c.sce
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+exec('Example2_1a.sce', -1)

+clc

+

+//Sample Problem 2-1c

+printf("\n**Sample Problem 2-1c**\n")

+average_velocity = overall_displacement/delta_t

+printf("The average velocity over the whole journey is %f km/h\n", average_velocity)

+

+//from position v/s time graph

+xset('window',1)

+xtitle ("position v/s time","time(hr)","position(Km)");

+//drawing reference lines

+plot(linspace(delta_t,delta_t,10),linspace(0,overall_displacement,10),'--.x')

+plot(linspace(0,delta_t,10),linspace(overall_displacement,overall_displacement,10),'--.o')

+plot(linspace(time,time,10),linspace(0,distance_covered,10),'--')

+plot(linspace(0,time,10),linspace(distance_covered,distance_covered,10),'--')

+//position v/s time graph

+x = linspace(0,time,10);

+y = linspace(0,distance_covered,10);

+plot(x,y,'r');

+//average graph

+x = linspace(time,delta_t,10);

+y = linspace(distance_covered,overall_displacement,10);

+plot(x,y,'r');

+//slope of this line will give us the average velocity

+x = linspace(0,delta_t,10);

+y = linspace(0,overall_displacement,10);

+plot(x,y,'m');

+legend('$\delta x=10.4 km$','time interval=.62hr')

+printf("The average velocity from the graph is %f km/h", 10.4/delta_t)
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diff --git a/24/CH2/EX2.1.c/Example2_1c_graph.jpg b/24/CH2/EX2.1.c/Example2_1c_graph.jpg
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index 000000000..8dc9c59b7
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+++ b/24/CH2/EX2.1.c/Example2_1c_graph.jpg
diff --git a/24/CH2/EX2.1.c/Example2_1c_result.txt b/24/CH2/EX2.1.c/Example2_1c_result.txt
new file mode 100755
index 000000000..6ac548f46
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+++ b/24/CH2/EX2.1.c/Example2_1c_result.txt
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+**Sample Problem 2-1c**

+The average velocity over the whole journey is 16.774194 km/h

+The average velocity from the graph is 16.774194 km/h 
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