# coding: utf-8
# # Python Introduction: Types
# Let's evaluate some simple expressions.
# In[1]:
3*2
# In[2]:
5+3*2
# You can use `type()` to find the *type* of an expression.
# In[3]:
type(5+3*2)
# Now add decimal points.
# In[4]:
5+3.5*2
# In[5]:
type(5+3.0*2)
# Strings are written with single (``'``) or double quotes (`"`)
# In[6]:
"hello"
# Multiplication and addition work on strings, too.
# In[2]:
3 * 'hello ' + "sc15"
# Lists are written in brackets (`[]`) with commas (`,`).
# In[8]:
[5, 3, 7]
# List entries don't have to have the same type.
# In[9]:
["hi there", 15, [1,2,3]]
# "Multiplication" and "addition" work on lists, too.
# In[10]:
[1,2,3] * 4 + [5, 5, 5]
# Hmmmmmm. Was that what you expected?
# In[1]:
import numpy as np
np.array([1,2,3]) * 4 + np.array([5,5,5])
# In[ ]: