Python subs示例

示例#1

文件： minima.py 项目： anueinberg/esmp2013_simulation

def fe(y):
    res = free_energy.subs({"y1": y[0], "y2": y[1], "y3": y[2]})
    if isinstance(res, sympy.Basic):
        #print y
        #raise "evaluation returns formula not a number"
        #print "evaluation returns formula not a number"
        #print y
        #print res
        try:
            res = float(res)
        except:
            res = np.nan
    if res == np.nan:
        print "NaN"
    return res

示例#2

文件： minima.py 项目： anueinberg/esmp2013_simulation

         "Wplus3": 52000,
         "Wminus12": 12000,
         "Wminus13": 12000,
         "Wminus23": 12000,
         "B1": 8000, # 8000
         "B2": 8000,
         "B3": 8000,
         "THETA1": 52500,
         "THETA2": 52500,
         "THETA3": 52500,
         "N1": 1000,
         "N2": 1000,
         "N3": 1000,
         "beta": 1/24}

free_energy = free_energy.subs(param)


sympy.pprint(free_energy)

def fe(y):
    res = free_energy.subs({"y1": y[0], "y2": y[1], "y3": y[2]})
    if isinstance(res, sympy.Basic):
        #print y
        #raise "evaluation returns formula not a number"
        #print "evaluation returns formula not a number"
        #print y
        #print res
        try:
            res = float(res)
        except: