I see that on Safari, the arrows appear as tiny boxes, whereas on the other browsers I tested, the boxes show correctly as arrows (as they do in your forum email).
I replaced the original arrows with a new set which did work correctly on Safari. Please check. You may need to adjust the horizontal positions of the arrows. We could replace this with a graphic, but it should be simpler to leave it as preformatted text for now. Thanks. On Sat, Aug 25, 2018 at 9:34 AM Brian Schott <[email protected]> wrote: > I am replying to a part of my own post for which I have not received any > responses. > > The code below is copied from the wiki and is part of the html for our > wiki. The text which refers to this pseudo graphic refers to the 3 "arrow"s > which appear as tiny boxes in the wiki version of fsoj41. I think the > positions of the 3 tiny boxes is correct but they do not resemble the > desirable ↓ (down arrow) symbol referred to at this link ` > https://en.wikipedia.org/wiki/Wikipedia:Mathematical_symbols `. The ↓ > cannot be applied in this context if the <pre>...</pre> is to be employed; > at least I don't know how to do so. > > I'm looking for suggestions about how to produce the pseudo graphic in > html. For example is there a way in html to assign ↓ to an extended > ascii character (sort of like assigning a value to a variable) and then put > that character between the <pre>...</pre> s? > > Btw, I have convinced myself from googling mostly "modular arithmetic" that > these pseudo graphics make some sense, and that Norman's usage of the term > "finite arithmetic" is not widely used. Though I have not seen any pseudo > graphic that are similar to Norman's, a careful perusal of the graphics > help make the point he is making. > > > *********wiki html code below ********* > > <pre> > 🠇 > ───────────────────── > mod 5 3 4 0 -4 -3 > > 🠇 > ──────────────────────────────────── > mod 7 3 4 5 6 0 -6 -5 -4 -3 > > 🠇 > ──────────────────────────────────────────────────── > mod 9 3 4 5 6 7 8 0 -8 -7 -6 -5 -4 -3 > </pre> > > *********wiki html code above ********* > > > On Sun, Aug 19, 2018 at 4:38 PM Brian Schott <[email protected]> > wrote: > > > Having attempted to edit fsoj39 and fsoj40, I am giving some thought to > > attacking fsoj41, but the subject matter is way out of my experience > range: > > finite arithmetic involving modular algebra algebra, I think, but don't > > quote me. > > > > I think I have found one consequential but minor error on page 264 of the > > pdf version below, where the following line should use 23, not 17. > > > > mod=.1 : '17&|@x' NB. set modulus > > > > But my question is mainly about the line graphs on page 268. The line > > graphs have arrows that I don't understand at all, to the point where I > > question their position and meaning. For example, of the 3 first graphs, > > the third has an arrow to the left of _3 and I wonder if it should be to > > the right of _3 as in the first two graphs. The fourth graph is > apparently > > different from the others in that the negative numbers on the axis, > > although missing, are imagined on the left side of zero. Not only do I > not > > understand the graphs and arrows, I don't have a clue about how their > > corrected versions can be represented in html on the wiki. > > > > So I would welcome someone else taking fsoj41 or at least giving me > > pointers. > > > > > > -- > > (B=) <-----my sig > > Brian Schott > > > > > -- > (B=) <-----my sig > Brian Schott > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
