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clear all
disp('Program napisał Eryk Juszczak')
disp('program służy do obliczania wielomianu i obwodu działki w celu kupna siatki')
disp('zadanie 1.')
disp('Program oblicza wielomian y=5*x^2+3*x-2.5 dla argumentu x a następnie oblicza z1 i z2')
disp('z1=abs(5y-10)')
disp('z2=3+(y-1)^2/(2y+1)')
x=input('podaj wartość argumentu x:');
[y]=wielomian(x);
z1=abs(5*y-10);
z2=3+(y-1)^2/(2*y+1);
disp(['dla x=',num2str(x),' wartość z1=',num2str(z1),', z2=',num2str(z2)])
save wyniki.mat y z1 z2
clear all
load wyniki.mat y z1 z2
disp(['y=',num2str(y)])
disp(['z1=',num2str(z1)])
disp(['z2=',num2str(z2)])
disp('zadanie 2')
disp('Program podaje ilość siatki którą musimu dokupić aby ogrodzić siatką działkę w kształcie koła o promieniu x m gdy posiadamy 200m siatki')
r=input('podaj promień działki:');
if r<0
disp(' nie można obliczyć pola działki dla promienia(r) mniejszego od 0')
else
[pole,obwod]=kolo(r);
dokupna=obwod-200;
disp(['pole działki o promieniu ' ,num2str(r), ' metrów wynosi: ' ,num2str(pole), 'metrów kwadratowych'])
disp(['aby ogrodzić działkę o promieniu ' ,num2str(r), 'metrów trzeba dokupić ' ,num2str(dokupna), ' metrów siatki'])
end
save wyniki.txt pole obwod dokupna -ascii
load wyniki.txt pole obwod dokupna -ascii
disp(['pole=',num2str(pole)])
disp(['obwod=',num2str(obwod)])
disp(['dokupna=',num2str(dokupna)])
function[pole,obwod]=kolo(r)
pole=pi*r^2;
obwod=2*pi*r;
end
function[y]=wielomian(x)
y=5*x^2+3*x-2.5;
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