| Expert Mod 2.5K+
P: 2,509
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please I would like to write a fonction that takes as argument a matrix, 2 integers describing a cell coordinate and a value that set the corresponding cell to the value?????????
please help me
Maybe this will help: - # A simple matrix
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# This matrix is a list of lists
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# Column and row numbers start with 1
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class Matrix(object):
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def __init__(self, cols, rows):
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self.cols = cols
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self.rows = rows
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# initialize matrix and fill with zeroes
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self.matrix = []
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for i in range(rows):
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ea_row = []
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for j in range(cols):
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ea_row.append(0)
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self.matrix.append(ea_row)
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def setitem(self, col, row, v):
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self.matrix[col-1][row-1] = v
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def getitem(self, col, row):
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return self.matrix[col-1][row-1]
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def __repr__(self):
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outStr = ""
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for i in range(self.rows):
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outStr += 'Row %s = %s\n' % (i+1, self.matrix[i])
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return outStr
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a = Matrix(4,4)
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print a
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a.setitem(3,4,'55.75')
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print a
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a.setitem(2,3,'19.1')
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print a
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print a.getitem(3,4)
Output: - >>> Row 1 = [0, 0, 0, 0]
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Row 2 = [0, 0, 0, 0]
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Row 3 = [0, 0, 0, 0]
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Row 4 = [0, 0, 0, 0]
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Row 1 = [0, 0, 0, 0]
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Row 2 = [0, 0, 0, 0]
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Row 3 = [0, 0, 0, '55.75']
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Row 4 = [0, 0, 0, 0]
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Row 1 = [0, 0, 0, 0]
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Row 2 = [0, 0, '19.1', 0]
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Row 3 = [0, 0, 0, '55.75']
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Row 4 = [0, 0, 0, 0]
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55.75
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>>>
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