Solve an equation through iteration in Matlab
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Hi, I am trying to solve the following 750 = x^4 + x in matlab using iteration
I want Matlab to display the values it obtains for x, I have tried to use a for loop but with no luck.
Would anyone be able to help out with a basic code I would need.
Kind regards
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回答(1 个)
David Hill
2019-11-13
function b = Solution(a,b)%a and b must bound the solution (a=5.2, b=5.3)
f=@(x)x^4+x-750;
while f(b)>.000001%whatever accuracy you want here
if f((a+b)/2)<0%this is a simple half slitting technique
a=(a+b)/2;
else
b=(a+b)/2;
end
end
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David Hill
2019-11-13
Works perfectly for me. Did you set it up as a function? If not, you need to assign values to a and b.
a=5.2;
b=5.3;
f=@(x)x^4+x-750;
while f(b)>.000001%whatever accuracy you want here
if f((a+b)/2)<0%this is a simple half slitting technique
a=(a+b)/2;
else
b=(a+b)/2;
end
end
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