...类很多,依据不同的标准划分,还有代数数(Algebraic number):可表示为整系数多项式的根的数;超越数(Transcendental number):任何不是整系数代数方程根的数,即任何不是代数数的复数,为常人熟知的是圆周率π和自然对数的底e;素数:只有1和它本身为约数...
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N a number or quantity that is real but nonalgebraic, that is, one that is not a root of any polynomial with rational coefficients such as π or e 超越数 [maths]
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