Simple x-y Graphing

The program plots a graph or graphs by pasting text in a box with x-y (two column data) with pure numbers. If the data matrix has more than two columns, then several graphs are created based on $x$ in the 1st column. Color, line-widths and legend list can be changed or augmented depending on the number of columns. The graphics is created using the javascript plot.ly library. The labels can be in $\LaTeX$ format if enclosed within dollar signs. For example x\text{(cm)} within dollar signs, will render as: $x\text{(cm)}$. For customization of graph appearance, the edit link at the right bottom corner of the graph can be used.