m=0; n=0; b=50; w=0; for a=0:0.1:36 for c=0:0.1:2*pi for l=0:0.05:30 w=l; for k=-l:0.05:l z=a^2/60; t=(450+30*z-a*cos(c)*k)/(z+15); if (15-t-z)~=0 p=a*cos(c)+( 1/30*a*cos(c)*t-a*cos(c))*(25015-z)/(15-t-z); ...展开收缩
Digital cellular telecommunications system (Phase 2+); Use of Data Terminal Equipment - Data Circuit terminating; Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)(GSM 07.05 version 5.5.0)