8665
A corollary of Euler 's formula is " " In general , the analytic representation of a simple sinusoid is obtained by expressing it in terms of complex-exponentials , discarding the negative frequency component , and doubling the positive frequency component .
 person: Euler
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Euler