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>>m=1;
d=2.2;
p=1;      
u=0.001;
d=0.1;
q=0.73;
R = 0:0.01:0.5;
n=2R/(1-2R);
a=nlog2R;
b= (0.5-R)^2;
c= q^1.5;        
e= 32^1.5;
f= D^2;
T= (0.94*(5+a)-5b)/b;
U=E*m*d*T/(7*c*P*u*f);
Plot (R, U);
n=2R/(1-2R);
    |
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n=2*R/(1-2*R)
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