math.blas.vectors: Fix ancient typo
math.blas.vectors: Fix ancient typo

bpollack/factor,mrjbq7/factor,AlexIljin/factor,mrjbq7/factor,factor/factor,bpollack/factor,AlexIljin/factor,tgunr/factor,tgunr/factor,tgunr/factor,bpollack/factor,AlexIljin/factor,factor/factor,bpollack/factor,bpollack/factor,bpollack/factor,factor/factor,tgunr/factor,tgunr/factor,tgunr/factor,AlexIljin/factor,bpollack/factor,mrjbq7/factor,mrjbq7/factor,AlexIljin/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,factor/factor,factor/factor,mrjbq7/factor,AlexIljin/factor