Not enought input arguements in line 2

Why i am getting this error in line 2.

function dj=system_equation(X)
p0=X(1)
p1=X(2)
p2=X(3)
% Re
%j =(64071*p0*p1)/20 + (46251*p0*p2)/20 + (46251*p1*p2)/20 - (7648587*p0*p1^2)/560 - (7648587*p0^2*p1)/560 - (5727591*p0*p2^2)/560 - (7648587*p0^2*p2)/560 - (5727591*p1*p2^2)/560 - (7648587*p1^2*p2)/560 - (64071*p0^2*sin(2))/80 - (64071*p1^2*sin(2))/80 - (34911*p2^2*sin(2))/80 + (64071*p0^2)/40 + (64071*p1^2)/40 + (34911*p2^2)/40 + (135685287*p0^2*p1^2)/4480 + (135685287*p0^2*p2^2)/4480 + (135685287*p1^2*p2^2)/4480 + (214183359*p0*p1*p2^2)/2240 + (34086177*p0*p1^2*p2)/320 + (34086177*p0^2*p1*p2)/320 + (7648587*p0*p1^2*sin(2))/1120 + (7648587*p0^2*p1*sin(2))/1120 + (5727591*p0*p2^2*sin(2))/1120 + (7648587*p0^2*p2*sin(2))/1120 + (5727591*p1*p2^2*sin(2))/1120 + (7648587*p1^2*p2*sin(2))/1120 - (51386292513*p0*p1^2*p2^2)/246400 - (51386292513*p0^2*p1*p2^2)/246400 - (51386292513*p0^2*p1^2*p2)/246400 - (135685287*p0^2*p1^2*sin(2))/8960 - (135685287*p0^2*p2^2*sin(2))/8960 - (135685287*p1^2*p2^2*sin(2))/8960 - (4204953*p0*p1*p2)/112 - (64071*p0*p1*sin(2))/40 - (46251*p0*p2*sin(2))/40 - (46251*p1*p2*sin(2))/40 + (4665477549303*p0^2*p1^2*p2^2)/12812800 + (4204953*p0*p1*p2*sin(2))/224 - (4665477549303*p0^2*p1^2*p2^2*sin(2))/25625600 - (214183359*p0*p1*p2^2*sin(2))/4480 - (34086177*p0*p1^2*p2*sin(2))/640 - (34086177*p0^2*p1*p2*sin(2))/640 + (51386292513*p0*p1^2*p2^2*sin(2))/492800 + (51386292513*p0^2*p1*p2^2*sin(2))/492800 + (51386292513*p0^2*p1^2*p2*sin(2))/492800


dj(1) =(64071*p0)/20 + (64071*p1)/20 + (46251*p2)/20 - (7648587*p0*p1)/280 - (7648587*p0*p2)/280 - (4204953*p1*p2)/112 - (64071*p0*sin(2))/40 - (64071*p1*sin(2))/40 - (46251*p2*sin(2))/40 + (135685287*p0*p1^2)/2240 + (135685287*p0*p2^2)/2240 + (214183359*p1*p2^2)/2240 + (34086177*p1^2*p2)/320 + (7648587*p1^2*sin(2))/1120 + (5727591*p2^2*sin(2))/1120 - (7648587*p1^2)/560 - (5727591*p2^2)/560 - (51386292513*p1^2*p2^2)/246400 - (51386292513*p0*p1*p2^2)/123200 - (51386292513*p0*p1^2*p2)/123200 - (135685287*p0*p1^2*sin(2))/4480 - (135685287*p0*p2^2*sin(2))/4480 - (214183359*p1*p2^2*sin(2))/4480 - (34086177*p1^2*p2*sin(2))/640 + (4665477549303*p0*p1^2*p2^2)/6406400 + (51386292513*p1^2*p2^2*sin(2))/492800 + (34086177*p0*p1*p2)/160 + (7648587*p0*p1*sin(2))/560 + (7648587*p0*p2*sin(2))/560 + (4204953*p1*p2*sin(2))/224 - (34086177*p0*p1*p2*sin(2))/320 + (51386292513*p0*p1*p2^2*sin(2))/246400 + (51386292513*p0*p1^2*p2*sin(2))/246400 - (4665477549303*p0*p1^2*p2^2*sin(2))/12812800


dj(2) =(64071*p0)/20 + (64071*p1)/20 + (46251*p2)/20 - (7648587*p0*p1)/280 - (4204953*p0*p2)/112 - (7648587*p1*p2)/280 - (64071*p0*sin(2))/40 - (64071*p1*sin(2))/40 - (46251*p2*sin(2))/40 + (135685287*p0^2*p1)/2240 + (214183359*p0*p2^2)/2240 + (34086177*p0^2*p2)/320 + (135685287*p1*p2^2)/2240 + (7648587*p0^2*sin(2))/1120 + (5727591*p2^2*sin(2))/1120 - (7648587*p0^2)/560 - (5727591*p2^2)/560 - (51386292513*p0^2*p2^2)/246400 - (51386292513*p0*p1*p2^2)/123200 - (51386292513*p0^2*p1*p2)/123200 - (135685287*p0^2*p1*sin(2))/4480 - (214183359*p0*p2^2*sin(2))/4480 - (34086177*p0^2*p2*sin(2))/640 - (135685287*p1*p2^2*sin(2))/4480 + (4665477549303*p0^2*p1*p2^2)/6406400 + (51386292513*p0^2*p2^2*sin(2))/492800 + (34086177*p0*p1*p2)/160 + (7648587*p0*p1*sin(2))/560 + (4204953*p0*p2*sin(2))/224 + (7648587*p1*p2*sin(2))/560 - (34086177*p0*p1*p2*sin(2))/320 + (51386292513*p0*p1*p2^2*sin(2))/246400 + (51386292513*p0^2*p1*p2*sin(2))/246400 - (4665477549303*p0^2*p1*p2^2*sin(2))/12812800


dj(3) =(46251*p0)/20 + (46251*p1)/20 + (34911*p2)/20 - (4204953*p0*p1)/112 - (5727591*p0*p2)/280 - (5727591*p1*p2)/280 - (46251*p0*sin(2))/40 - (46251*p1*sin(2))/40 - (34911*p2*sin(2))/40 + (34086177*p0*p1^2)/320 + (34086177*p0^2*p1)/320 + (135685287*p0^2*p2)/2240 + (135685287*p1^2*p2)/2240 + (7648587*p0^2*sin(2))/1120 + (7648587*p1^2*sin(2))/1120 - (7648587*p0^2)/560 - (7648587*p1^2)/560 - (51386292513*p0^2*p1^2)/246400 - (51386292513*p0*p1^2*p2)/123200 - (51386292513*p0^2*p1*p2)/123200 - (34086177*p0*p1^2*sin(2))/640 - (34086177*p0^2*p1*sin(2))/640 - (135685287*p0^2*p2*sin(2))/4480 - (135685287*p1^2*p2*sin(2))/4480 + (4665477549303*p0^2*p1^2*p2)/6406400 + (51386292513*p0^2*p1^2*sin(2))/492800 + (214183359*p0*p1*p2)/1120 + (4204953*p0*p1*sin(2))/224 + (5727591*p0*p2*sin(2))/560 + (5727591*p1*p2*sin(2))/560 - (214183359*p0*p1*p2*sin(2))/2240 + (51386292513*p0*p1^2*p2*sin(2))/246400 + (51386292513*p0^2*p1*p2*sin(2))/246400 - (4665477549303*p0^2*p1^2*p2*sin(2))/12812800

%dj=[djdp0 djdp1 djdp2]
% dj2dp0=diff(djdp0,p0)
% dj2dp1=diff(djdp1,p1)
% dj2dp2=diff(djdp2,p2)

Answer 1

[Walter Roberson]

You are running the code without providing any input parameters.

You might be trying to run the code by pressing the green Run button.

Or you might possibly have coded something like

fsolve(system_equation, x0)

when you would instead have needed to code

fsolve(@system_equation, x0)