Question Number 102819 by aurpeyz last updated on 11/Jul/20
Commented by Rasheed.Sindhi last updated on 11/Jul/20
$${Perhaps}\:{he}\:{doesn}'{t}\:{know}\:{to}\:{use} \\ $$$${the}\:{keyboard}\:{of}\:{this}\:{app}. \\ $$
Commented by JDamian last updated on 11/Jul/20
$${Why}\:{should}\:{he}\:{learn}\:{if}\:{there}\:{are}\:{others} \\ $$$${who}\:{do}\:{for}\:{him}? \\ $$
Commented by aurpeyz last updated on 11/Jul/20
$$\mathrm{i}\:\mathrm{dont}\:\mathrm{know}\:\mathrm{how}\:\mathrm{to}\:\mathrm{use}\:\mathrm{that}\:\mathrm{well} \\ $$
Commented by prakash jain last updated on 11/Jul/20
This is a link to tutorial to watch. short but should give you a start.
https://youtu.be/vpPoeVQ49Lo
also please recheck your question. It does seem to get a nice closed form solution.