PLEASE HELP ME IN WRITING THE CODE FOR THE linearized GMSK pulse..

I'M NOT ABLE TO FIND THE DEFINITE INTEGRAL OF A FUNCTION ,, WHOSE UPPER LIMIT IS A VARIABLE...
I' HAVE TO INTEGRATE A GAUSSIAN PULSE OVER THE INTERVAL 0 TO 't'
ACTUALLY I'M DESIGNING A FILTER FOR 8PSK MODULATION AND I HAVE TO DESIGN THE FILTER according to ETSI STANDARDS :: GSM 05.04 VERSION 8.1.2 rELEASE 1999 ,, ETSI EN 300 959 V8.1.2 (2001-2002).

MY CODE IS

clc;
x=[-10 :0.01 :10 ];
T=.2;
z=((T*(sqrt(log(2))))/(2*pi*0.3));
g=qq((x-((5*T)/2))/z)-qq((x-((3*T)/2))/z);
%plot(g);
zoom on;
d=sym(g);

for n=[-5:0.01 :5 ];
fg1=pi*int(d,0,n);

end;
ezmesh(fg1);
S1 = subs(fg1);
for l=[-1:0.01 :1 ];
fg2=pi*int(d,0,(l-(4*T)));

end;
S2 = subs(fg2);
subplot(3,1,1);
plot(S2);
subplot(3,1,2);

plot(S1);
if (0<=x<=(4*T))
x1=sin(S1);
else if (4*T<=x<=8*T)
x1=sin((pi*0.5)-(pi*S1));
end;
end;

PLEASE HELP : PLEASE HELP: PLEASE HELP: SOS!!!...........................................................

UBAID ABDULLAH PLEASE HELP ME ..... Start a New Thread