How to plot the graph based on equation using canvasjs spline?

• August 27, 2016 at 4:41 pm #12081
  
  prasanth

  Hi i am using to canvasjs in spline graph but i want to draw the graph based on equation but i try to draw the multiple series lines in graph only using array data based plotting the graph .so how to plot the graph based on equation for example (y=x^2+1) based on equation how to draw the graph using canvasjs please help..

  August 29, 2016 at 11:23 am #12094
  
  Vishwas R

  Prasanth,

  You can store all generated dataPoints, according to equation, in an array and assign it to chart dataPoints. Here is an example.

  August 29, 2016 at 12:00 pm #12095
  
  prasanth

  Its ok but i want to user type the equation for example algebra equation 1/5x + 2/15 = 1/7x + 4 based on equation how to draw the graph using canvasjs. please help me…

  August 29, 2016 at 1:32 pm #12096
  
  Vishwas R

  Prasanth,

  You can use JavaScript eval() function to evaluate an expression. According to user input expression generate dataPoints and render chart. Here is an example.

  August 29, 2016 at 2:00 pm #12097
  
  prasanth

  Its working nice.i have one more how to ellipse shape graph draw in canvas its possible or not please helpme and Thank you.

  August 30, 2016 at 2:19 pm #12156
  
  prasanth

  How to plot the ellipse graph in canvasjs its possible are not.please helpme .