Examlex
Use a calculator to evaluate the expression to four decimal places.
Epilepsy
A neurological disorder characterized by recurrent, unprovoked seizures.
Insomnia
A medical condition characterized by difficulty falling asleep, staying asleep, or experiencing restful sleep.
Mood Disorders
Psychological disorders characterized by the elevation or lowering of a person's mood, such as depression or bipolar disorder.
Nightmares
Disturbing dreams that cause the dreamer to wake up feeling anxious and frightened.
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