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How can I calculate x for each associated Ho?

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Parham Babakhani Dehkordi
回答： Star Strider 2015-3-30
Hi, I tried to calculate x value for each Ho in the following equation by using fzero function. but there is an error which avoids running the code properly, I am interested in having 7 values for x, eventually 7 tetas in the equations:
Equations:
Jo=[0.74]; Jw=[0.35 0.25 0.19 0.12 0.08 0.06 0.04]; Jmix=Jo+Jw; ew=Jw./Jmix; Hw=((1+0.35.*(1-ew))).*ew; Ho=1-Hw;
fun=@(x) 2*pi.*Ho-2*pi+x-sin(x); teta=fzero(fun,[0 2*pi])
error:
Operands to the and && operators must be convertible to logical scalar values.
Error in fzero (line 423) while fb ~= 0 && a ~= b
Error in a (line 4) teta=fzero(fun,[0 2*pi])
is there anybody to help me how I can remove this error?

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采纳的回答

Star Strider
Star Strider 2015-3-30
Use a for loop and iterate through the values for ‘Ho’:
fun=@(x,Ho) 2*pi*(Ho-1)+x-sin(x);
for k1 = 1:length(Ho)
teta(k1)=fzero(@(x) fun(x,Ho(k1)),[0 2*pi]);
end
teta % Display Results
produces:
teta =
2.8164 2.5552 2.3515 2.0350 1.7840 1.6225 1.4175

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