Matlab .. assaigment L4 !!

[adehmi]

السلام عليكم ..

شباب اللي عنده حلول part 2 ينزلها الله لا يهينه

شاكرلكم ..

[mohammed kh]

x=0

while x~=4
disp('gemoetry calculator');
disp('1.the area of the circle')
disp('2.the area of the rectangle')
disp('3.the area of the square')
disp('4.quit');
x=input('enter your choice (1-4)');
if x==1

y=input('input the radian=');
c=pi*(y^2);
disp(c)

elseif x==2

y=input('enter the length=');
e=input('enter the width=');
r=y*e;
disp(r)

elseif x==3

y=input('the length=');
s=y^2;
disp(s)

elseif x==4
clc
end
end

[mohammed kh]

function [s]=leibniz(n)

for k=0:n
s=(-1^k)*(1/(2*k+1));
end
end

[mohammed kh]

x=[0:200];
i = 0;
for z = 0:200
i = i +1;
s(i) = leibniz(z);
end
y=pi/4;
plot(x,y,'y*',x,s,'g-')

[وما توفيقي الا بالله]

حل السؤال الاول :-

ch=0
while ch~=4
clc
disp('*')
disp(' Geometry Calculator ')
disp('1-Calculate the Area of a Circle ')
disp('2-Calculate the Area of Rectangule ')
disp('3-Calculate the Area of a square ')
disp('4-Quit ')
disp(' ')
ch=input('Enter your choice :');
disp(' ')
disp('*')
disp(' ')
switch ch
case 1
r=input('Enter the radius : ');
a=pi*r^2;
disp(['the area of the circle is : ',num2str(a)])
z=input('press enter key ')
case 2
s=input('Enter the side : ');
l=input('Enter the length : ');
a=s*l;
disp(['the area of the rectangle is : ',num2str(a)])
z=input('press enter key ');
case 3
s=input('Enter the side : ');
a=s^2;
disp(['the area of the square is : ',num2str(a)])
z=input('press enter key ');
case 4
clc
end
end


============
حل السؤوال الثاني

n=input('Pls enter n : ');
s=0;
for k=0:n
s=s+((-1)^k*(1/(2*k+1)));
S(k+1)=s;
end
disp('The summation of the series is = ');disp(S);
y=pi/4;
k=0:n;
plot(k,y,k,S(k+1))


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