Problems with copy/pasting the link. This one is better:   
   https://www.symbolab.com/solver/derivative-calculator   
      
   There is a math editor, it already displays d/dx _,   
   you can for example type in sin(x)^2.   
      
   Am Sonntag, 2. Juli 2017 20:51:22 UTC+2 schrieb burs...@gmail.com:   
   > It has a section "Solution" and it has a section "Steps",   
   > the steps Section has expandable Substeps sections:   
   > https://www.symbolab.com/solver/derivative-calculator//frac%7B   
   %7D%7Bdx%7D%28/sin%5E%7B2%7D%28x%29%29?or=ex   
      
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