For this key "/pgf/foreach/remember=\<variable> as \ (initially \<value>)" the document explains "By default
the value of \<variable> is zero for the first iteration, however, the optional (initially \<value>)
statement, allows the \<macro> to be initially defined as \<value>."
It's more appropriate to say by default the value of \<macro> is zero for the first iteration. The \<variable> gets a value out of the list, or gets evaluated in some way, in current iteration.
Version
3.1.10
Details
For this key "/pgf/foreach/remember=\<variable> as \ (initially \<value>)" the document explains "By default
the value of \<variable> is zero for the first iteration, however, the optional (initially \<value>)
statement, allows the \<macro> to be initially defined as \<value>."
It's more appropriate to say by default the value of \<macro> is zero for the first iteration. The \<variable> gets a value out of the list, or gets evaluated in some way, in current iteration.