In Feynman’s path integrals, there is: ∫dq″Π0(t″,t′;q″,q′)=1 What is the funny pi looking symbol?
May 17, 2022 #1 Sophrosyne 128 20 In Feynman’s path integrals, there is: ∫dq″Π0(t″,t′;q″,q′)=1 What is the funny pi looking symbol?
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May 18, 2022 #2 haushofer Science Advisor Insights Author 2,826 1,369 I guess it's the product symbol.