numpy operation

• .T

• = ≥ ≤ > <

• +-

• keepdim

• dtype

• index +- 1

• axis

• *

• seed

• ()

• axis 0 - vstack

• axis 1 - hstack

• axis 2 - dstack

• axis - stack

  np.min([3, 1, 4])             # 1                                                                                    np.max([[1,2],[3,4]], axis=0) # [3, 4] (열별 최대)
  np.max([[1,2],[3,4]], axis=1) # [2, 4]