def firstElmOneElseZero(vect):
zerosVect = vector.zeroOfVect(vect)
if not (vector.isMatrix(vect)):
zerosVect[0] = 1
return zerosVect
zerosVect[0][0] = 1
return zerosVect
def firstElmValueElseZero(vect, alphaVect, index):
if (index > len(alphaVect)):
raise Exception("Index Error! cannot set fist element value")
zerosVect = vector.zeroOfVect(vect)
if not (vector.isMatrix(vect)):
zerosVect[0] = alphaVect[index]
return zerosVect
zerosVect[0][0] = alphaVect[index]
return zerosVect
def matrixSliceMarch(vect, index):
if (index >= len(vect)):
raise Exception(
"\n >> Error! Invalid index \n >> vectorLength:%s \n >> index:%s "
% (len(vect), index))
vectSubA = vect[:index]
vectSubB = vect[index:]
vectA = []
if (len(vectSubA) > 0):
vectA = vector.zeroOfVect(vectSubA)
vectB = firstElmOneElseZero(vectSubB)
return vectA + vectB
def setSutmColumnValue(vect, index):
if(index >= len(vect)):
raise Exception(
"\n >> Error! Invalid index \n >> vectorLength:%s \n >> index:%s " % (len(vect), index))
vectSubA = vect[:index]
vectSubB = vect[index:]
vectA = []
vectB = []
# Becuase at first iteration vectSubA will be empty array
if(len(vectSubA) > 0):
vectA = vectSubA
vectB = vector.zeroOfVect(vectSubB)
return vectA+vectB
def setColumnToDiagnolValue(vect, alphaVect, index):
if (index >= len(vect)):
raise Exception(
"\n >> Error! Invalid index \n >> vectorLength:%s \n >> index:%s "
% (len(vect), index))
vectSubA = vect[:index]
vectSubB = vect[index:]
vectA = []
vectB = []
if (len(vectSubA) > 0):
vectA = vector.zeroOfVect(vectSubA)
if (index < len(alphaVect)):
vectB = firstElmValueElseZero(vectSubB, alphaVect, index)
return vectA + vectB
def firstRemainElseZero(vect):
a1 = vect[0]
resultvect = vector.zeroOfVect(vect)
resultvect[0] = a1
return resultvect
def firstOneElseZero(vect):
resultvect = vector.zeroOfVect(vect)
resultvect[0] = 1
return resultvect