336.sagews

c1,c2=var('c1,c2')
solve([1.32*c1+.287E-1*c2==.927,.287E-1*c1-.580*c2==-.135],c1,c2)

[[c1 == 53378550/76642369, c2 == 20480490/76642369]]

R=RealField(20)
R(53378550/76642369);R(20480490/76642369 );

0.69646 0.26722

bi=   0.927E+00  -0.135E+00
kij=   0.132E+01   0.287E-01
   0.287E-01  -0.580E+00

Syntax Error: 0.287E-01 -0.580E+00

# bi=   0.597E+00  -0.197E+00
#kij=   0.132E+01   0.287E-01
#   0.287E-01  -0.580E+00
c1,c2=var('c1,c2')
solve([1.32*c1+.287E-1*c2==.597,.287E-1*c1-.580*c2==-.197],c1,c2)

[[c1 == 34060610/76642369, c2 == 27717390/76642369]]

R=RealField(20)
R(34060610/76642369);R(27717390/76642369)

0.44441 0.36165