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Python VectorSpace.zero方法代码示例

本文整理汇总了Python中sage.modules.free_module.VectorSpace.zero方法的典型用法代码示例。如果您正苦于以下问题:Python VectorSpace.zero方法的具体用法?Python VectorSpace.zero怎么用?Python VectorSpace.zero使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在sage.modules.free_module.VectorSpace的用法示例。


在下文中一共展示了VectorSpace.zero方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: test_satisfy_inter

# 需要导入模块: from sage.modules.free_module import VectorSpace [as 别名]
# 或者: from sage.modules.free_module.VectorSpace import zero [as 别名]
 def test_satisfy_inter(self):
   v_space = VectorSpace(QQ,4)
   sub = v_space.subspace([[1,-1,1,1],[2,-3,4,5]])
   comp = orth_complement(v_space,sub)
   zero = v_space.subspace([v_space.zero()])
   inter = sub.intersection(comp)
   self.assertEqual(zero,inter)
开发者ID:robertgoss,项目名称:Logarithmic-differential-forms,代码行数:9,代码来源:logarithmic_forms_test.py

示例2: homology

# 需要导入模块: from sage.modules.free_module import VectorSpace [as 别名]
# 或者: from sage.modules.free_module.VectorSpace import zero [as 别名]
 def homology(self,varient="complement",*args):
   hom = {}
   cc = self.chain_complex(varient,(-1,self.poly_ring.ngens()+1),*args)
   #Some need wider return range
   for i in range(self.poly_ring.ngens()+1):
     vs_am = VectorSpace(QQ,len(cc[i]))
     if len(cc[i])==0:
       hom[i] = []
       continue
     if len(cc[i-1])!=0:
       d_im = []
       for b in cc[i-1]:
         d_b = self.differential(b,varient,*args)
         d_im.append(lift_to_basis(d_b,cc[i]))
       img = vs_am.subspace(d_im)
     else:
       img = vs_am.subspace([vs_am.zero()])
     if len(cc[i+1])!=0:
       d_ker = []
       for b in cc[i]:
         d_b = self.differential(b,varient,*args)
         d_ker.append(lift_to_basis(d_b,cc[i+1]))
       ker = (matrix(QQ,d_ker)).left_kernel()
     else:
       ker = vs_am
     quo = ker.quotient(img)
     hom[i] = []
     for b in quo.basis():
       vec = quo.lift(b)
       part_sum = LogarithmicDifferentialForm.make_zero(i,self)
       for c,f in zip(vec,cc[i]):
         part_sum = part_sum + c*f
       hom[i].append(part_sum)
   return hom
开发者ID:robertgoss,项目名称:Logarithmic-differential-forms,代码行数:36,代码来源:logarithmic_forms.py

示例3: test_full

# 需要导入模块: from sage.modules.free_module import VectorSpace [as 别名]
# 或者: from sage.modules.free_module.VectorSpace import zero [as 别名]
 def test_full(self):
   v_space = VectorSpace(QQ,4)
   zero = v_space.subspace([v_space.zero()])
   comp = orth_complement(v_space,v_space)
   self.assertEqual(zero,comp)
开发者ID:robertgoss,项目名称:Logarithmic-differential-forms,代码行数:7,代码来源:logarithmic_forms_test.py


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