MATLAB 프로그래밍 과제8

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본문내용

>> r = 0:.1:3;
>> A = 4*pi*r.^2;
>> V = 4/3*pi*r.^3;
>> plot(A,V),xlabel('A'),ylabel('V'),grid

a.
>> v0 = 40; g = 9.81; A = 30*pi/180;
>> t_hit = 2*(v0/g)*sin(A);
>> t = [0:t_hit/100:t_hit];
>> h = v0*t*sin(A) - 0.5*g*t.^2;
>> v = sqrt(v0^2 - 2*v0*g*sin(A)*t + g^2*t.^2);
>> u = find(h >= 15);
>> t_1 = (u(1)-1)*(t_hit/100)

t_1 =

1.0194

>> t_2 = u(length(u)-1)*(t_hit/100)

t_2 =

3.0581
b.
>> u = find(h >= 15 & v <= 36);
>> t_1 = (u(1)-1)*(t_hit/100)

t_1 =

1.0601

>> t_2 = u(length(u)-1)*(t_hit/100)

t_2 =

참고 자료

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