no one actually knows for sure and there is no scientific evidence, however people have made predictions like in December 2012, some christians believe the end times are here and the world is likely to end within the next 300 years.
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The exact center of the Earth.
Most lines require a semi-colon and the end. It's likely that that line does. A parse error is an error in syntax so you need to add ; at the end of the line like so:
a point
The exact value is an irrational number, and can't be written on paper with digits.0.34202 is less than 0.000042 percent wrong.Cos(70 deg) is an irrational number and it is impossible to give its exact value.
Definition.