| ... | ... | @@ -164,9 +164,9 @@ The points and the slider are then added to the canvas. | 
              
                | 164 | 164 | \number[editable]{n}{real}{-1} | 
              
                | 165 | 165 | \slider{n_s1}{n}{-5}{5} | 
              
                | 166 | 166 | \slider[1]{n_s2}{n}{-10, editable}{10, editable} | 
              
                | 167 |  | -    \number{abs}{real}{abs(var(n))} | 
              
                |  | 167 | +    \number{absn}{real}{absn(var(n))} | 
              
                | 168 | 168 | \point{p1}{real}{var(n),0} | 
              
                | 169 |  | -    \point{p2}{real}{var(abs),0} | 
              
                |  | 169 | +    \point{p2}{real}{var(absn),0} | 
              
                | 170 | 170 | \end{variables} | 
              
                | 171 | 171 |  | 
              
                | 172 | 172 | \label{n}{$n_1 =$} | 
              
                | ... | ... | @@ -208,9 +208,9 @@ their colors, see <a href="Color-and-Plotting#adding-color-and-label-to-variable | 
              
                | 208 | 208 |  | 
              
                | 209 | 209 | ```LaTeX | 
              
                | 210 | 210 | \point[editable]{p0}{real}{0,0} % creates an editable point at 0,0 | 
              
                | 211 |  | -\randint[Z]{x}{-3}{3} | 
              
                | 212 |  | -\randint[Z]{y}{-3}{3} | 
              
                | 213 |  | -\point[editable]{p1}{real}{var(x), var(y)} % creates an editable point with random default coordinate | 
              
                |  | 211 | +\randint[Z]{a}{-3}{3} | 
              
                |  | 212 | +\randint[Z]{b}{-3}{3} | 
              
                |  | 213 | +\point[editable]{p1}{real}{var(a), var(b)} % creates an editable point with random default coordinate | 
              
                | 214 | 214 | ``` | 
              
                | 215 | 215 |  | 
              
                | 216 | 216 | <div class="alert green">You can extract the x and y coordinates of a point and use it as in *value* for other variables by using var(p1)[x] and var(p1)[y]</div> | 
              
                | 217 | 217 |  |