# Xu Cui

## Find cheapest flight

Another option is https://www.kayak.com/flights, which is also useful to find cheapest flight. I booked a direct flight (non-stop) from San Francisco to...

## Recommend 3blue1brown

When I was in high school and saw the following equation, my mind was blown! $$1+\frac{1}{4}+\frac{1}{9}+\frac{1}{16}+…=\frac{\pi^2}{6}$$ Why is Pi here? Isn’t it supposed to...

## To beginner: task-based fNIRS study design (2)

This is a guest post by Ning Liu from Stanford University. – A basic block design includes two conditions: task condition and control condition....

## To beginner: task-based fNIRS study design (1)

This is a guest post by Ning Liu from Stanford University. — For someone who has no imaging background and just began to use...

## How to find NIRS experts using “Find Experts” app

If you are a newcomer in the NIRS field, you may wonder who are the experts in this field. You might know a few...