Not enough Input Arguments

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Zia
Zia 2011-11-8
Hello,
I am trying to solve following code:
function dCb = buffer1(pH,Cb,Cw,Kws, Ca, Ka)
phspan = [2,13];
Cb0 = [0.02; 0];
Cw = 55.5;
pKw= 14;
Kw = 10^(-pKw);
Kws = Kw/Cw;
Ca= 0.01;
Ka= 2*10^-5;
dCb = 2.303*(10^(-pH)+(Ca*Ka*10^(-pH)/(10^(-pH)+Ka)^2)+(Cw*Kws*10^(-pH)/(10^(-pH)+Kws)^2)); %HIGHLIGHT HERE
ode = @(ph, Cb) buffer1(ph, Cw, Kws, Ca, Ka)
[ph. Cb] = ode45(ode, phspan, Cb0)
But i am getting error of NOT ENOUGH INPUT ARGUMENTS(at line 11-highlighted) I don't understand what is missing. Can anybody help me plz.
Thanks in advance:
Zia

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回答（1 个）

Walter Roberson
Walter Roberson 2011-11-8
Your function handle "ode" accepts two input arguments, ignores the second of them (Cb), and calls buffer1() with 5 arguments.
function buffer1 expects 6 input arguments, not 5; in particular it expects its second input argument to be Cb, which your "ode" function handle does not pass to it.

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