scalar random variable造句

例句与造句

1. If each of " X " and " Y " is a scalar random variable which is realized repeatedly in temporal sequence ( a time series ), then the correlations of the various temporal instances of " X " are known as " autocorrelations " of " X ", and the cross-correlations of " X " with " Y " across time are temporal cross-correlations.
2. It's difficult to find scalar random variable in a sentence. 用scalar random variable造句挺难的