MATLAB: Error in MATLAB Too many input arguments

MATLAB

Respected sir, While running my programme i am getting error message too many input arguments.I have searched following link "http://cn.mathworks.com/matlabcentral/answers/176195-pernicious-error-too-many-input-arguments"But unable to solve it,This is the subfunctionfunction PT,which is called in main function(the part of main function related to PT is
    l1 = PT(m_cp(m),m_di(m),m_o(m),t(m),p_cp(m));
    l2 = PT(m_cp(m),m_di(m),m_o(m),(t(m)+(h/2)),p_cp(m));
    l3 = PT(m_cp(m),m_di(m),m_o(m),(t(m)+(h/2)),p_cp(m));
    l4 = PT(m_cp(m),m_di(m),m_o(m),(t(m)+(h)),p_cp(m));
    p_t(m+1) = p_t(m)+((h*(l1+2*l2+2*l3+l4))/6);)
PLz help where is my error
 Error using PT
 Too many input arguments.
 Error in brain (line 45)
    l1 = PT(m_cp(m),m_di(m),m_o(m),t(m),p_cp(m));
function [F] = PT(m_cp,p_cp,m_o,t)
r=2074;
gamma=1.667;
v_aft=.13e-3;
v_rg=.00015;
v_chx=.00002;
v_hhx=.00002;
v_t=.00025;
tc=100;
th=300;
%trg=(th-tc)/(log(th/tc));
vo=.13e-3;
vs=.5e-3;
f=2;
tcp=300;
omega=2*pi*f;
trg=((th-tc)/log(th/tc));
v1=r*(m_cp-m_di);
v2=(r*(m_o-m_di)*th)/tc;
v3=(v_rg/trg)+(v_chx/tc)+(v_t/(gamma*tc))+(v_hhx/tc);
v_cp=vo+(0.5*vs*(1+sin(omega*t)));
v_cpdot=vs*pi*f*cos(omega*t);
v4=-gamma/v_cp;
v5=m_cp*r*tcp;
v6=p_cp*v_cpdot;
p_cpdot=(v4*(v5+v6));
v7=(v_aft*p_cpdot)/th;
F=(v1-v2-v7)/v3;

Best Answer

Debashis - the error message Too many input arguments is telling you that you are calling a function and trying to pass it more input parameters than it is expecting. Look at the signature for PT
 function [F] = PT(m_cp, p_cp, m_o, t)
There are four input parameters. Now look at how you are calling this function
 l1 = PT(m_cp(m),m_di(m),m_o(m),t(m),p_cp(m));
You are passing five input parameters and so the error message makes sense.
If I map your variable names to the input parameters it would seem that the second one, m_di, does not belong (the function signature does not include an input with this name) and that the last one p_cp should be the second input. Please correct how you are calling this function and try again.
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