def min_canon(expr, args):
axis = expr.axis
del expr
assert len(args) == 1
tmp = max(-args[0], axis=axis)
canon, constr = max_canon(tmp, tmp.args)
return -canon, constr
def norm_inf_canon(expr, args):
assert len(args) == 1
tmp = max(args[0], expr.axis, expr.keepdims)
return max_canon(tmp, tmp.args)
def min(x, axis=None):
""":math:`\min_{i,j}\{X_{i,j}\}`.
"""
x = Expression.cast_to_const(x)
return -max(-x, axis=axis)
def min_canon(expr, args):
del expr
assert len(args) == 1
tmp = max(-args[0])
canon, constr = max_canon(tmp, tmp.args)
return -canon, constr