[theano]入门-变量相加、矩阵声明

#作为python新手，可能学习的东西比较多，注意如果两个矩阵相乘的话，跟matlab区别还是挺大的
#!/usr/bin/env python
# coding=utf-8
#格式一般用import ss as d
import theano.tensor as T
from theano import function
import numpy as np

#声明变量
x=T.dscalar(‘x‘)
y=T.dscalar(‘y‘)
z=x+y
f=function([x,y],z)

#call the function
f(2,3)
print f(2,3)

#declare the varalble
x=T.dmatrix(‘x‘)
y=T.dmatrix(‘y‘)
z=x+y
f=function([x,y],z)

c=f([[1,2],[3,5]],[[1,3],[3,5]])

print c[0,0]
#shape function will return the size of a array
d=np.shape(c)
print d

a=3
b=2
#** means mici
c=a**2
print c

a=T.vector()
out=a**10
f=function([a],out)

print f([1,2,3])