16 lines
438 B
Python
16 lines
438 B
Python
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def laurent_analytic_part(series):
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F = base_ring(parent(series))
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Ft.<t> = LaurentSeriesRing(F)
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result = Ft(0)
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for i in series.exponents():
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if i<0:
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result += series[i]*t^i
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return result
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def laurent_integral(series):
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F = base_ring(parent(series))
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Ft.<t> = LaurentSeriesRing(F)
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result = Ft(0)
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for i in series.exponents():
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result += series[i]*(t^i).integral()
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return result
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