def test_simplify(self):
interval = Interval(-2, 1)
ff = Bndfun.initfun_fixedlen(self.f, interval, 1000)
gg = ff.simplify()
self.assertEqual(gg.size, standard_chop(ff.onefun.coeffs))
self.assertEqual(infnorm(ff.coeffs[:gg.size] - gg.coeffs), 0)
self.assertEqual(ff.interval, gg.interval)
def test_simplify(self):
interval = Interval(-2,1)
ff = Bndfun.initfun_fixedlen(self.f, interval, 1000)
gg = ff.simplify()
self.assertEqual(gg.size, standard_chop(ff.onefun.coeffs))
self.assertEqual(infnorm(ff.coeffs[:gg.size]-gg.coeffs), 0)
self.assertEqual(ff.interval, gg.interval)
def test_simplify(self):
gg = self.ff.simplify()
# check that simplify is calling standard_chop underneath
self.assertEqual(gg.size, standard_chop(self.ff.coeffs))
self.assertEqual(infnorm(self.ff.coeffs[:gg.size] - gg.coeffs), 0)
# check we are returned a copy of self's coeffcients by changing
# one entry of gg
fcfs = self.ff.coeffs
gcfs = gg.coeffs
self.assertEqual((fcfs[:gg.size] - gcfs).sum(), 0)
gg.coeffs[0] = 1
self.assertNotEqual((fcfs[:gg.size] - gcfs).sum(), 0)
def test_simplify(self):
gg = self.ff.simplify()
# check that simplify is calling standard_chop underneath
self.assertEqual(gg.size, standard_chop(self.ff.coeffs))
self.assertEqual(infnorm(self.ff.coeffs[:gg.size]-gg.coeffs), 0)
# check we are returned a copy of self's coeffcients by changing
# one entry of gg
fcfs = self.ff.coeffs
gcfs = gg.coeffs
self.assertEqual((fcfs[:gg.size]-gcfs).sum(),0)
gg.coeffs[0] = 1
self.assertNotEqual((fcfs[:gg.size]-gcfs).sum(),0)
def simplify(self):
'''Call standard_chop on the coefficients of self, returning a
Chebtech comprised of a copy of the truncated coefficients.'''
# coefficients
oldlen = len(self.coeffs)
longself = self.prolong(max(17, oldlen))
cfs = longself.coeffs
# scale (decrease) tolerance by hscale
tol = prefs.eps * max(self.interval.hscale, 1)
# chop
npts = standard_chop(cfs, tol=tol)
npts = min(oldlen, npts)
# construct
return self.__class__(cfs[:npts].copy(), interval=self.interval)
def simplify(self):
'''Call standard_chop on the coefficients of self, returning a
Chebtech comprised of a copy of the truncated coefficients.'''
cfs = self.coeffs
npts = standard_chop(cfs)
return self.__class__(cfs[:npts].copy())
def simplify(self):
'''Call standard_chop on the coefficients of self, returning a
Chebtech comprised of a copy of the truncated coefficients.'''
cfs = self.coeffs
npts = standard_chop(cfs)
return self.__class__(cfs[:npts].copy())