import numpy as np, matplotlib.pyplot as plt
# Resolver a equação diferencial u'(s)=2su(s), com u(0)=1.
def f(s,u): # du/dt=2su
p=2*s*u
return p
n=10
h=(1-0)/n
x=np.linspace(0,1,n+1)
# Método de Euler y_(i+1)=y_i+h*f(t_i,y_i)
y=[]
y.append(1) # condição inicial
for i in range(1,n+1):
y.append(y[i-1]+h*f(x[i-1],y[i-1]))
plt.plot(x,y,color='red')
plt.show()
# Método dos trapézios y_(i+1)=y_i+h*(f(t_i,y_i)+f(t_(i+1),y_(i+1)))/2
y=[]
y.append(1) # condição inicial
for i in range(1,n+1):
y.append((y[i-1]+h*f(x[i-1],y[i-1])/2)/(1-x[i]*h))
plt.plot(x,y,color='blue')
plt.show()
To embed this project on your website, copy the following code and paste it into your website's HTML: