diff --git a/examples/cvode_with_parameters_modified.py b/examples/cvode_with_parameters_modified.py
index 396b934c..d8135ca4 100644
--- a/examples/cvode_with_parameters_modified.py
+++ b/examples/cvode_with_parameters_modified.py
@@ -21,7 +21,7 @@
 from assimulo.problem import Explicit_Problem
 
 def run_example(with_plots=True):
-    """
+    r"""
     This is the same example from the Sundials package (cvsRoberts_FSA_dns.c)
 
     This simple example problem for CVode, due to Robertson, 
diff --git a/examples/dopri5_basic.py b/examples/dopri5_basic.py
index 413d6a48..941f8499 100644
--- a/examples/dopri5_basic.py
+++ b/examples/dopri5_basic.py
@@ -39,7 +39,7 @@ def f(t,y):
 
     #Define an Assimulo problem
     exp_mod = Explicit_Problem(f, 4.0,
-              name = 'DOPRI5 Example: $\dot y = - y$')
+              name = r'DOPRI5 Example: $\dot y = - y$')
     
     exp_sim = Dopri5(exp_mod) #Create a Dopri5 solver
 
diff --git a/examples/euler_basic.py b/examples/euler_basic.py
index 40de392d..08254553 100644
--- a/examples/euler_basic.py
+++ b/examples/euler_basic.py
@@ -40,7 +40,7 @@ def f(t,y):
 
     #Define an Assimulo problem
     exp_mod = Explicit_Problem(f, 4.0,
-              name = 'ExplicitEuler Example: $\dot y = - y$')
+              name = r'ExplicitEuler Example: $\dot y = - y$')
     
     #Explicit Euler
     exp_sim = ExplicitEuler(exp_mod) #Create a explicit Euler solver
diff --git a/examples/euler_vanderpol.py b/examples/euler_vanderpol.py
index d9212f5a..71aa167c 100644
--- a/examples/euler_vanderpol.py
+++ b/examples/euler_vanderpol.py
@@ -80,7 +80,7 @@ def jac(t,y):
         import pylab as pl
         pl.plot(t,y[:,0], marker='o')
         pl.title(exp_mod.name)
-        pl.ylabel("State: $y_1$")
+        pl.ylabel(r"State: $y_1$")
         pl.xlabel("Time")
         pl.show()
 
diff --git a/examples/ida_basic_backward.py b/examples/ida_basic_backward.py
index e7698879..be292d81 100644
--- a/examples/ida_basic_backward.py
+++ b/examples/ida_basic_backward.py
@@ -39,7 +39,7 @@ def f(t,y,yd):
     
     #Define an Assimulo problem
     imp_mod = Implicit_Problem(f,t0=5, y0=0.02695, yd0=-0.02695,
-              name = 'IDA Example: $\dot y + y = 0$ (reverse time)')
+              name = r'IDA Example: $\dot y + y = 0$ (reverse time)')
     
     #Define an explicit solver
     imp_sim = IDA(imp_mod) #Create a IDA solver
diff --git a/examples/lsodar_bouncing_ball.py b/examples/lsodar_bouncing_ball.py
index 775c7603..5bc6f5f1 100644
--- a/examples/lsodar_bouncing_ball.py
+++ b/examples/lsodar_bouncing_ball.py
@@ -135,7 +135,7 @@ def run_example(with_plots=True):
         pl.subplot(221)
         pl.plot(t,y)
         pl.title('LSODAR Bouncing ball (one step mode)')
-        pl.ylabel('States: $y$ and $\dot y$')
+        pl.ylabel(r'States: $y$ and $\dot y$')
         pl.subplot(223)
         pl.plot(exp_sim.t_sol,exp_sim.h_sol)
         pl.title('LSODAR step size plot')
diff --git a/examples/rungekutta34_basic.py b/examples/rungekutta34_basic.py
index fea7749f..c8a06bb8 100644
--- a/examples/rungekutta34_basic.py
+++ b/examples/rungekutta34_basic.py
@@ -40,7 +40,7 @@ def f(t,y):
 
     #Define an Assimulo problem
     exp_mod = Explicit_Problem(f, 4.0,
-              name = 'RK34 Example: $\dot y = - y$')
+              name = r'RK34 Example: $\dot y = - y$')
     
     exp_sim = RungeKutta34(exp_mod) #Create a RungeKutta34 solver
     exp_sim.inith = 0.1 #Sets the initial step, default = 0.01
diff --git a/examples/rungekutta4_basic.py b/examples/rungekutta4_basic.py
index cb009129..82b34a58 100644
--- a/examples/rungekutta4_basic.py
+++ b/examples/rungekutta4_basic.py
@@ -41,7 +41,7 @@ def f(t,y):
 
     #Define an Assimulo problem
     exp_mod = Explicit_Problem(f, 4.0,
-              name = 'RK4 Example: $\dot y = - y$')
+              name = r'RK4 Example: $\dot y = - y$')
     
     exp_sim = RungeKutta4(exp_mod) #Create a RungeKutta4 solver
     
diff --git a/tests/solvers/test_euler.py b/tests/solvers/test_euler.py
index 501f2e8a..a12fcc49 100644
--- a/tests/solvers/test_euler.py
+++ b/tests/solvers/test_euler.py
@@ -23,7 +23,7 @@
 import numpy as np
 import scipy.sparse as sps
 
-float_regex = "[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
+float_regex = r"[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
 
 class Extended_Problem(Explicit_Problem):
     
diff --git a/tests/solvers/test_odepack.py b/tests/solvers/test_odepack.py
index b5037e67..427f7b74 100644
--- a/tests/solvers/test_odepack.py
+++ b/tests/solvers/test_odepack.py
@@ -25,7 +25,7 @@
 import numpy as np
 import scipy.sparse as sps
 
-float_regex = "[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
+float_regex = r"[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
 
 class Extended_Problem(Explicit_Problem):
     
diff --git a/tests/solvers/test_radau5.py b/tests/solvers/test_radau5.py
index 5731d623..ee20cedb 100644
--- a/tests/solvers/test_radau5.py
+++ b/tests/solvers/test_radau5.py
@@ -28,7 +28,7 @@
 import numpy as np
 
 import re
-float_regex = "[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
+float_regex = r"[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
 
 class KeyboardInterruptAux:
     """Auxiliary class for creating problems (both explicit and implicit) 
diff --git a/tests/solvers/test_rosenbrock.py b/tests/solvers/test_rosenbrock.py
index f5a157ab..d65b518a 100644
--- a/tests/solvers/test_rosenbrock.py
+++ b/tests/solvers/test_rosenbrock.py
@@ -23,7 +23,7 @@
 import numpy as np
 import scipy.sparse as sps
 
-float_regex = "[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
+float_regex = r"[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
 
 class Test_RodasODE:
     def setUp(self):
diff --git a/tests/solvers/test_rungekutta.py b/tests/solvers/test_rungekutta.py
index 0634242e..a7e8cc50 100644
--- a/tests/solvers/test_rungekutta.py
+++ b/tests/solvers/test_rungekutta.py
@@ -22,7 +22,7 @@
 from assimulo.exception import Explicit_ODE_Exception, TimeLimitExceeded
 import numpy as np
 
-float_regex = "[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
+float_regex = r"[\s]*[\d]*.[\d]*((e|E)(\+|\-)\d\d|)"
 
 class Test_Dopri5: