Solution Chapter (6) MATLAP

8/13/2019 Solution Chapter (6) MATLAP

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6.8 PROBLEMS:

TCH=[75 79 86 86 79 81 73 89 91 86 81 82 86 88 89 90 8284 81 79 73 69 73 79 82 72 66 71 69 66 66];

TSF=[69 68 70 73 72 71 69 76 85 87 74 84 76 68 79 75 6868 73 72 79 68 68 69 71 70 89 95 90 66 69];

%a;

fprintf('average temp for the month in Chicago is;%g\naverage temp for the month in San fransisco is;%g\n',mean(TCH),mean(TSF))

%b;

fprintf('%g days temperature is above the average inChicago.\n',sum(TCH>mean(TCH)))

fprintf('%g days temperature is above the average inSan fransisco.\n',sum(TSF>mean(TSF)))

%c;


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fprintf('%g days temp in San Fransisco was lower thanChicago,on the following days of the

month:\n',sum(TSF


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for a=1:1:4

for b=1:1:3

c(a,b)=(a+b)/b^2;

end

end

disp(c)

for i=1:1:4

for j=1:1:4

p(i,j)=factorial(i+j-2)/(factorial(i-1)*factorial(j-1));

end

enddisp(p)

for i=1:1:7

for j=1:1:7


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p(i,j)=factorial(i+j-2)/(factorial(i-1)*factorial(j-1));

end

end

disp(p)

n=input('please enter anumber to cnstruct n*n matrix;');

d=input('please enter two different values for the 1sttwo element; ');

for i=1:1:n

for j=1:1:nif i==1

d(j+2)=d(j)+d(j+1);

c(i,j)=d(j);


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else if i==2

d(j+n)=d(j+n-1)+d(j+n-2);

c(i,j)=d(j+n);

else if i==3

d(j+2*n)=d(j+(2*n-1))+d(j+(2*n-2));

c(i,j)=d(j+2*n);

else if i==4

d(j+3*n)=d(j+(3*n-1))+d(j+(3*n-2));

c(i,j)=d(j+3*n);else if i==5

d(j+4*n)=d(j+(4*n-1))+d(j+(4*n-2));

c(i,j)=d(j+4*n);

else if i==6

d(j+5*n)=d(j+(5*n-1))+d(j+(5*n-2));

c(i,j)=d(j+5*n);

end

end

end

end

end

end

end

end


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else

fprintf('the equation has no real root.\n')

end

end

n=1;

while true

if (rem(n,11)==0 & sqrt(n)>132)

fprintf('The required number is: %i\n',n);

break

else

n=n+1;

end

end

format long


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m=input('please enter the m value :');

for n=0:1:m

x=(-1/3)^n/(2*n+1);

end

y=sqrt(12)*x;

disp(y)

format long

c=1;

m=input('please enter avalue: ');

for n=1:m

c=c*(2*n)^2/((2*n)^2-1);

end

disp(2*c)


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format short

x=[-3.5 -5 6.2 11 0 8.1 -9 0 3 -1 3 2.5];

for n=1:length(x)

if x(n)>=0

P(n)=x(n);

else

N(n)=x(n);

end

endP

N

x=[-3.5 5 -6.2 11.1 0 7 -9.5 2 15 -1 3 2.5];

for i=1:1:length(x)

for j=i+1:1:length(x)

if x(i)>x(j)

k=x(i);x(i)=x(j);

x(j)=k;

else continue


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end

end

end

disp(x)

scores=input('please enter 20 exam scores as an arrey.: ');

s=sort(scores)

fprintf('the average of the eight top scores is: %g\n',mean(s(13:20)))


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format long

x=input('please enter the value of angle in degrees:');

y=pi/180*x;

E=1; n=0; S=0;

while E>0.000001

S(n+2)=((-1)^n/factorial(2*n+1)*y^(2*n+1));

E=abs((S(n+2)-S(n+1))/S(n+1))

n=n+1;

end

fprintf('sine(%g) = %g\n',x,sum(S))

gender=input('please enter your gender: ','s');


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INTEN=input('please enter your fitness (low,medium orhigh): ','s');

age=input('please enter your age: ');

RHR=input('please enter your resting heart rate: ');

while strcmp(INTEN,'low')==1

if strcmp(gender,'male')

THR1=(220-age-RHR)*0.55+RHR

else

THR2=(206-0.88*age-RHR)*0.55+RHR

end

INTEN=0;

end

while strcmp(INTEN,'medium')==1



else

THR4=(206-0.88*age-RHR)*0.65+RHR

end

INTEN=0;

end while strcmp(INTEN,'high')==1




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else

THR6=(206-0.88*age-RHR)*0.8+RHR

end

INTEN=1;

End

W=input('please enter your weight in lb: ');

H=input('please enter your height in inches: ');

BMI=703*W/H^2;


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if BMI=18.5 & BMI=25 & BMI


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format bank

time=input('please enter the time when the call made in(day,evening or night) : ','s');

duration=input('please enter the duration of the call :');

dur=ceil(duration);

switch time

case 'day'

if dur>=1 & dur


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if dur>=10&dur30

s=2.60+(0.06*(dur-30))

end

case'evening'

if dur>=1&dur=10&dur30

s=1.70+(0.04*(dur-30))

end

case'night'

if dur>=1&dur=10&dur


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if dur>30

s=1+(0.02*(dur-30))

end

end

format bank

p=randi(20);

fprintf('the amount to be paid is..: $%i \n',p),

payment=input('Enter the vale of your payment:$');

if payment


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%a;

Dg=150; Vd=50; Ka=1.6; Ke=0.4;

t=0:10;cp=Dg*Ka./(Vd*(Ka-Ke)).*(exp(-Ke*t)-exp(-Ka*t))

plot(cp,t,'r--*','markeredgecolor','b')

%b;

t=0:4:24

Cp=Dg*Ka./(Vd*(Ka-Ke))*(exp(-Ke*t)-exp(-Ka*t))

figure

plot(Cp,t,'--k')


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p=input('please enter your number: ')

x=p;

for i=1:infx(i+1)=(x(i)+(p/x(i)))/2;

E=abs((x(i+1)-x(i))/x(i));

if E


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m=0; l=0;

for i=10:500

k=0;

for j=1:i

if rem(i,j)==0

k=k+1;

n=i;

else continue

end

endif k


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z(l+1)=x(c+1);

l=l+1;

end

end

v=reshape(z,2,22)'

inp=input('Enter an amount of volume: ');

inunit=input('Its current unit: ','s');

out=input('Enter the your desired new units(to beconverted): ','s');

switch inunit

case 'm3'

outm3=inp;

outL=inp*37.854118;

outft3=inp/30.48;

case 'L'

outL=inp;

outm3=inp/37.854118;


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outft3=inp*35.287;

case 'ft3'

outft3=inp;

outm3=inp*0.0283;

outL=outm3/30;

end

switch out

case 'm3'

disp(outm3)case 'L'

disp(outL)

case 'ft3'

disp(outft3)

end

B=10; x(1)=0; j=1; s=abs(randn(1,1));

for i=1:100

while x(j)


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table=reshape(randperm(12),6,2);

disp('League table')

disp(' ')

disp(table)


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gas=input('please enter one of the next gases to findit''s heat capacity (SO2,SO3,O2,N2)','s');

T=input('please enter the current temperature: ');

i=1;

while true

temp=input('is the calculation needed for anotherextra temperature? enter(yes or no)','s');

i=i+1;

if strcmp(temp,'no')==1

break

else if strcmp(temp,'yes')==1

T(i)=input('please enter the extra temperature:');

end

end

end

switch gas

case 'SO2'

Cp=38.91+3.904*10^-2*T-3.105*10^-5*T.^2+8.606*10^-9*T.^3;

case 'SO3'


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score=input('please enter your score as vector: ');

CR=input('please enter your course reting as vector:');

CS=input('please enter your score as vector: ');


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Rp=input('Enter your Rounds played\n')

if Rp>=5&Rp=7&Rp

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Solution Chapter (6) MATLAP