fzero help
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y=@(T) I*T*sind(A)-(0.5*G*(T^2));
root = fzero(y, 0)
abouve eqation is for a projectile that projected at an angle (gose in a kind of ar half oval shape)
want to find the time it hist ground but fzero only gives me the biginning which is 0
23 个评论
  Matt Fig
      
      
 2011-2-25
				Come on now, Matt! Where is the fun of solving the equation with your brain instead of making MATLAB do it?
采纳的回答
  Honglei Chen
    
      
 2012-9-17
        The anwser is in the comments above
From Matt Fig
rt = 0; 
d = .1; 
cnt = 1; 
while rt<.1 
rt = fzero(y,rt+d*cnt); 
cnt = cnt + 1; 
end
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