Courant minimax principle  In mathematics, the Courant minimax principle gives the eigenvalues of a real symmetric matrix. It is named after Richard Courant. The Courant minimax principle gives a condition for finding the eigenvalues for a real symmetric matrix. The Courant minimax principle is as follows:  For any real symmetric matrix "A",  where "C" is any ("k" − 1) × "n" matrix. Notice that the vector "x" is an eigenvector to the corresponding eigenvalue "λ". The Courant minimax principle is a result of the maximum theorem, which says that for "q"("x") = , "A" being a real symmetric matrix, the largest eigenvalue is given by "λ"1 = max||"x"||=1"q"("x") = "q"("x"1), where "x"1 is the corresponding eigenvector. Also (in the maximum theorem) subsequent eigenvalues "λ""k" and eigenvectors "x""k" are found by induction and orthogonal to each other; therefore, "λ""k" = max "q"("x""k") with "j","x""k"  Wisbech St Mary railway station  Wisbech St Mary railway station was a station on the Midland and Great Northern Joint Railway line between Wisbech and Peterborough. Located in Wisbech St. Mary, it is now closed. David L. Niezgodski  David L. Niezgodski is a Democratic member of the Indiana Senate from the 10th district since 2016. He previously served in the Indiana House of Representatives, representing the 7th District from 2006 to 2016. Niezgodski is married to Shiela Niezgodski. In 2019, Sheila Niezgodski was elected as a Democrat to South Bend's Common Council, representing the 6th District. Jam Ghulam Qadir Khan  Jam Mir Ghulam Qadir Khan Aliani (Urdu: جام غلام قادرخان عالياني), who belonged to Koreja Family of Samma Tribe who ruled over Sindh.One of his ancestor Jam Arradin Migrated from Sindh and settled in Kanrach during the riegn of Mughal emperor Jahangir(1569-1627) later one of his descendants of Jam Arradin, Jam Rabdino was known for his bravery and generosity.