# Numpy

### Axis

### Loops

```
for row in array:
for column in row:
pass
for x in np.nditer(array, order='C'): #C-order, F-ortran order
pass
for x in np.nditer(array, op_flags=['readwrite']):
x[...] = x*3 + 1
```

```
for row in array:
for column in row:
pass
for x in np.nditer(array, order='C'): #C-order, F-ortran order
pass
for x in np.nditer(array, op_flags=['readwrite']):
x[...] = x*3 + 1
```