def sum(self, name: str = "") -> Money:
if name:
return u.sum([
u.parse_money(a["amount"]) for a in self
if a["name"].startswith(name)
])
return u.sum([u.parse_money(a["amount"]) for a in self])
def polyR(s, p):
"""
:param s: ``Signal``
:param p: ``poly.Polynomial``
:return: New signal that is ``s`` transformed by ``p`` interpreted
as a polynomial in *R*.
"""
# range(10, -1, -1) counts down from 10 to 0, inclusive
return util.sum([c * Rn(s, k) \
for (c, k) in zip(p.coeffs, range(p.order, -1, -1))])
def polyR(s, p):
"""
@param s: C{Signal}
@param p: C{poly.Polynomial}
@return: New signal that is C{s} transformed by C{p} interpreted
as a polynomial in I{R}.
"""
# range(10, -1, -1) counts down from 10 to 0, inclusive
return util.sum([c * Rn(s, k) \
for (c, k) in zip(p.coeffs, range(p.order, -1, -1))])
def polyR(s, p):
"""
:param s: ``Signal``
:param p: ``poly.Polynomial``
:return: New signal that is ``s`` transformed by ``p`` interpreted
as a polynomial in *R*.
"""
# range(10, -1, -1) counts down from 10 to 0, inclusive
return util.sum([c * Rn(s, k) \
for (c, k) in zip(p.coeffs, range(p.order, -1, -1))])
def polyR(s, p):
"""
@param s: C{Signal}
@param p: C{poly.Polynomial}
@return: New signal that is C{s} transformed by C{p} interpreted
as a polynomial in I{R}.
"""
# range(10, -1, -1) counts down from 10 to 0, inclusive
return util.sum([c * Rn(s, k) \
for (c, k) in zip(p.coeffs, range(p.order, -1, -1))])
def test_closure_lambda():
print('[py/closure]')
sumFunc = util.sum()
box = [1, 2, 3, 4, 5, 6]
for val in box:
print(sumFunc(val), end=' ')
print()
print('[py/lambda]')
# lambda返回的值作为该元素的权值，sort将按照权值大小进行排序
# 奇数为False，偶数为True，故奇数在前
print(sorted(box, key=lambda x: x % 2 == 0))
def getRect(self, x, y):
X, Y, space = self.X, self.Y, self.space
if type(X) == int:
width = float(self.width) / X
xp = self.x + width * x
elif [list, tuple].__contains__(type(X)):
width = float(self.width) * X[x] / sum(X)
xp = self.x + float(self.width) * sum(X, 0, x)/sum(X)
if type(Y) == int:
height = float(self.height) / Y
yp = self.y + height * y
elif [list, tuple].__contains__(type(Y)):
height = float(self.height) * Y[y] / sum(Y)
yp = self.y + float(self.height) * sum(Y, 0, y)/sum(Y)
rect = Rectangle((xp + space / 2.0, yp + space / 2.0, width - space, height - space))
return rect
import util from my_util import util2 #my_utin is package or folder #util, util2 is module or a file from my_util.util2 import squre as squre_x print(util.sum(1, 2)) #3 print(util2.squre(2)) #4 print(squre_x(3)) #9 #pip install .... #pip uninstall ... #to install package of modules
def softmax(x):
exp = sp.exp(x - sp.max(x))
return exp / sp.sum(exp, axis=1, keepdims=True)
def pi_sum(a, b):
return sum(lambda x: 1.0 / (x * (x + 2)), a, lambda x: x + 4, b)
def integral(f, a, b, dx):
return sum(f, a + dx / 2.0, lambda x: x + dx, b) * dx
