matrix column, as shown in the annotations of the column headings in Figure 1. y is the chapter number within the specified notebook. It is the same as the row number in the matrix which is to generate the material for the chapter. z is a mini-document number within the chapter (row). This allows for the generation of a
After purchasing a new laptop computer or battery for your laptop, we recommend that the battery be charged for no less than 24-hours. A 24-hour charge makes sure the battery is fully charged and helps with the battery's life expectancy. Once it is fully charged, you should not discharge it fully, if possible. Lithium-ion batteries (the type used in modern laptop computers) are strained, and may be weakened, when they are fully discharged.
for the original battery,if you use in the right way,one years later,the full charge battery can be used about 2 hours;but if you use random,it can not,so as myself,i buy one more chargers,and put them in the place where i use them beside my car..t the moment I will have one battery (my current one) IN the laptop, plus up to three batteries that will be charged up the day before I leave. I'm trying to establish whether or not the batteries NOT in the laptop will retain their charge or if a battery needs to be in the laptop to hold its charge.