def __init__(self, m, n):
self.M = m
self.N = n
d = np.ones((n))
self.diagH = sparse.diags(d, 0)
# to reference the element, use diag.data[0,0]
self.iter = 0
self.maxfev = 20
self.ftol = 0.0001
self.gtol = 0.9
self.nfun = 1
self.finish = False
self.eps = 1.0e-5
self.iprint = [1, 0]
self.stpmax = 1e20
self.stpmin = 1e-20
self.xtol = 1e-16
self.mcsrch_instance = Mcsrch()
