Hey,
I slightly disagree.
You may not "need" to know mathematics to create a candlestick, but you will struggle to compute a Kaufman Adaptive MA or Sine Weighted MA if you have no understand of maths whatsoever.
Of course, most software packages can compute and plot data for us, but it's like saying one need not to study maths at school so long as he will have a calculator as an adult.
Besides, TA as a "pattern recognition" discipline is a bit oversimplified. I am sure those who build artificial neural networks would agree.
But, if the underlying idea was that one need not to know maths to do some TA and make money in the markets, that I agree with.
🙂