∏怎么读?
∏是希腊字母π的大写(读pai ),在数学上通常表示连乘(小写π通常表示圆周率);就象Σ表示连加一样。
数值:
3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196442881097566593344612847564823378678316527120190914564856
∏是希腊字母,即π的大写形式,在数学中表示求积运算或直积运算,形式上类似于Σ。
希腊字母读法
Α α alpha ['AlfE]
Β β beta ['bi:tE,'beitE]
Γ γ gamma ['gAmE]
Δ δ delta ['deltE]
Ε ε epsilon [ep'sailEn,'epsilEn]
Ζ ζ zeta ['zi:tE]
Η η eta ['i:tE,'eitE]
Θ θ theta ['Wi:tE]
Ι ι iota [ai'outE]
Κ κ kappa ['kApE]
Λ λ lambda ['lAmdE]
Μ μ mu [mju:]
Ν ν nu [nju:]
Ξ ξ xi [gzai,ksai,zai]
Ο ο omicron [ou'maikrEn]
Π π pi [pai]
Ρ ρ rho [rou]
Σ σ sigma ['sigmE]
Τ τ tau [tR:]
Υ υ upsilon [ju:p'sailEn,'ju:psilEn]
Φ φ phi [fai]
Χ χ chi [kai]
Ψ ψ psi [psai]
Ω ω omega ['oumigE]