593 resultados para Tabela de Pitágoras
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Mode of access: Internet.
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Mode of access: Internet.
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Este trabajo busca mostrar una forma general de encontrar arreglos de tres números naturales (tercias) que cumplen la relación de Pitágoras, es decir que la suma del cuadrado de los dos menores de como resultado el cuadrado del mayor, a través de un proceso mucho más general que los conocidos hasta ahora, llegando incluso a proponer unas fórmulas que, en función de dos parámetros permite encontrar dichos conjuntos de tres elementos, cuyos resultados se los presenta en unas tablas. Los resultados afirman la idea de que existe un infinito número de tercias que cumplen la relación de Pitágoras. Luego veremos cómo se puede usar estas tablas para construir relaciones donde la suma de los cuadrados de más de dos números es igual al cuadrado de otro.
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Flash que explica como fazer uma tabela autoexplicativa.
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Ilustração estática com tabela de exemplos de indutores enzimáticos e inibidores enzimáticos.
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Purpose: To establish the prevalence of refractive errors and ocular disorders in preschool and schoolchildren of Ibiporã, Brazil. Methods: A survey of 6 to 12-year-old children from public and private elementary schools was carried out in Ibiporã between 1989 and 1996. Visual acuity measurements were performed by trained teachers using Snellen's chart. Children with visual acuity <0.7 in at least one eye were referred to a complete ophthalmologic examination. Results: 35,936 visual acuity measurements were performed in 13,471 children. 1.966 children (14.59%) were referred to an ophthalmologic examination. Amblyopia was diagnosed in 237 children (1.76%), whereas strabismus was observed in 114 cases (0.84%). Cataract (n=17) (0.12%), chorioretinitis (n=38) (0.28%) and eyelid ptosis (n=6) (0.04%) were also diagnosed. Among the 614 (4.55%) children who were found to have refractive errors, 284 (46.25%) had hyperopia (hyperopia or hyperopic astigmatism), 206 (33.55%) had myopia (myopia or myopic astigmatism) and 124 (20.19%) showed mixed astigmatism. Conclusions: The study determined the local prevalence of amblyopia, refractive errors and eye disorders among preschool and schoolchildren.
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física