The setjmp/longjmp facility in C is essentially a GOTO.

e_ijke_imn=𝛿ⱼₘ𝛿ₖₙ-𝛿ⱼₙ𝛿ₖₘ. (2.2.43) The permutation symbol and the Kronecker delta prove to be very useful in proving vector identities.

The forward passer receives the ball, runs a yard or two as a feint, and then, with scarcely a look over the broken field, selects a person and a place and throws the ball.

The new accusation brought by Urban against Manfred of murdering his sister-in-law's embassador – it may be observed that, tacitly, he acquits him of parricide, fratricide, and nepoticide – requires a little explanation.