Python cos 예제들

예제 #1

파일: get_started.py 프로젝트: stanle/madopt

def getModel():
    N = 10**5
    model = madopt.IpoptModel(show_solver=True)
    x = dict()
    for i in range(N):
        x[i] = model.addVar(lb=-1.5, ub=0, init=-0.5, name="x"+str(i))

    obj = madopt.Expr(0)
    for i in range(N):
        obj += (x[N-i-1] - 1)**2
    model.setObj(obj)

    for i in range(N-2):
        a = float(i+2)/float(N)
        model.addConstr((x[i+1]**2 + 1.5*x[i+1] - a)*madopt.cos(x[i+2]) - x[i], lb=0, ub=0)

    return model

예제 #2

def getModel():
    N = 10**5
    model = madopt.IpoptModel(show_solver=True)
    x = dict()
    for i in range(N):
        x[i] = model.addVar(lb=-1.5, ub=0, init=-0.5, name="x" + str(i))

    obj = madopt.Expr(0)
    for i in range(N):
        obj += (x[N - i - 1] - 1)**2
    model.setObj(obj)

    for i in range(N - 2):
        a = float(i + 2) / float(N)
        model.addConstr(
            (x[i + 1]**2 + 1.5 * x[i + 1] - a) * madopt.cos(x[i + 2]) - x[i],
            lb=0,
            ub=0)

    return model

예제 #3

파일: pytest.py 프로젝트: stanle/madopt

x = dict()
for i in range(N):
    x[i] = model.addVar(lb=-1.5, ub=0, init=-0.5, name="x"+str(i))

a = madopt.ln(x[0])
a = madopt.log2(x[0])

obj = madopt.Expr(0)
for i in range(N):
    obj += (x[N-i-1] - 1)**2
model.setObj(obj)

for i in range(N-2):
    a = float(i+2)/float(N)
    model.addConstr((x[i+1]**2 + 1.5*x[i+1] - a)*madopt.cos(x[i+2]) - x[i], lb=0, ub=0)

model.solve()


if model.has_solution:
    print(model.nx, model.ng, model.objValue, model.stat)

var = x[0]
if model.has_solution:
    # var.x ==> solution value
    print(var.lb, var.ub, var.init, var.x)

# change bounds
var.lb = -1
var.ub = 12

예제 #4

파일: pytest.py 프로젝트: wq5636/madopt

x = dict()
for i in range(N):
    x[i] = model.addVar(lb=-1.5, ub=0, init=-0.5, name="x" + str(i))

a = madopt.ln(x[0])
a = madopt.log2(x[0])

obj = madopt.Expr(0)
for i in range(N):
    obj += (x[N - i - 1] - 1)**2
model.setObj(obj)

for i in range(N - 2):
    a = float(i + 2) / float(N)
    model.addConstr(
        (x[i + 1]**2 + 1.5 * x[i + 1] - a) * madopt.cos(x[i + 2]) - x[i],
        lb=0,
        ub=0)

model.solve()

if model.has_solution:
    print(model.nx, model.ng, model.objValue, model.stat)

var = x[0]
if model.has_solution:
    # var.x ==> solution value
    print(var.lb, var.ub, var.init, var.x)

# change bounds
var.lb = -1