====== BraketDiagonal ====== ### //BraketDiagonal(psi1List, O, psi2List)// calculates the expectation value or matrix element $\left\langle \psi_1[i] \mid O \mid \psi_2[i] \right\rangle$ for all $i$. Whereby $I$ is the minimum of the length of the two tables. If //#psi1List// is not equal to //#psi2List// a warning is given. If psi1List or psi2List is a function instead of a list of functions the value returned is the same as one would get for //Braket//. ### ===== Input ===== * psi1 or psiList1 : Wavefunction or list of Wavefunctions * O : Operator * psi2 or psiList2 : Wavefunction or list of Wavefunctions ===== Output ===== * real or complex number, or a list of these ===== Example ===== ### see //Braket// ### ==== Input ==== -- see the example for Braket ==== Result ==== see the example for Braket ===== Table of contents ===== {{indexmenu>.#1}}