power function
[ˈpaʊər ˈfʌŋkʃən]
nounpl: power functions
função potência
1. A mathematical function of the form f(x) = ax^n, where a is a constant and n is a real number (the exponent or power)
The function f(x) = 2x³ is a power function with exponent 3.
A função f(x) = 2x³ é uma função potência com expoente 3.
2. In statistics, a measure of the ability of a test to detect a true effect when it exists
The power function of the statistical test increased with larger sample sizes.
A função potência do teste estatístico aumentou com tamanhos de amostra maiores.
3. In electrical engineering, the relationship between voltage and current in a given circuit element
The power function describes how power consumption varies with voltage.
A função potência descreve como o consumo de energia varia com a tensão.
This is primarily technical mathematical and scientific terminology used consistently across English-speaking countries and Brazil. The term is fundamental in mathematics education and is used identically in both American and Brazilian academic contexts. Understanding power functions is a core component of secondary and tertiary mathematics curricula in both countries.
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