#8 Basic arithmetic operation returns grotesque value

[Ralf Mardorf]

On Arch Linux extcalc returns the correct value for

1040.79+73.41-31.90-388.63-31.57-37.80-92.00-170.50-170.50-72.93-34.18-34.18

it's

50.01

if it calculates

1040.79+73.41-31.90-388.63-31.57-37.80-92.00-170.50-170.50-72.93-34.18-34.18-50.01

extcalc returns

1.11022302462516e-16

instead of

0

$ pacman -Qi extcalc | head -4
Name : extcalc
Version : 0.9.3_1-4
Description : A multifunctional scientific graphic calculator
Architecture : x86_64