diff --git a/mapytex/calculus/API/tokens/number.py b/mapytex/calculus/API/tokens/number.py
index 9181e27..a78675c 100644
--- a/mapytex/calculus/API/tokens/number.py
+++ b/mapytex/calculus/API/tokens/number.py
@@ -13,10 +13,8 @@ Tokens representing interger and decimal
 from decimal import Decimal as _Decimal
 from .token import Token
 from ...core.arithmetic import gcd
-#from ...core.random.int_gene import filter_random
 from ...core.MO import MO, MOnumber
 from ...core.MO.fraction import MOFraction
-from random import random
 
 __all__ = ["Integer", "Decimal", "Fraction"]
 
@@ -54,23 +52,6 @@ class Integer(Token):
 
         return cls(mo, name, ancestor)
 
-    @classmethod
-    def random(
-        cls, name="", min_value=-10, max_value=10, rejected=[0, 1], accept_callbacks=[]
-    ):
-        """ Generate a random Integer
-
-        :param name: name of the Integer
-        :param min_value: minimum value
-        :param max_value: maximum value
-        :param rejected: rejected values
-        :param accept_callbacks: list of function for value acceptation
-
-        """
-        candidate = filter_random(min_value, max_value, rejected, accept_callbacks)
-
-        return Integer(candidate, name)
-
 
 class Decimal(Token):
 
@@ -108,36 +89,6 @@ class Decimal(Token):
 
         return cls(mo, name, ancestor)
 
-    @classmethod
-    def random(
-        cls,
-        name="",
-        min_value=-10,
-        max_value=10,
-        digits=2,
-        rejected=[0, 1],
-        reject_callbacks=[],
-    ):
-        """ Generate a random Decimal
-
-        :param name: name of the Integer
-        :param min_value: minimum value
-        :param max_value: maximum value
-        :param digits: digits after comas
-        :param rejected: rejected values
-        :param reject_callbacks: list of function for value rejection
-
-        """
-        conditions = [lambda x: x in rejected] + reject_callbacks
-
-        float_cand = (max_value - min_value) * random() + min_value
-        candidate = _Decimal(f"{float_cand:.{digits}f}")
-        while any(c(candidate) for c in conditions):
-            float_cand = (max_value - min_value) * random() + min_value
-            candidate = _Decimal(f"{float_cand:.{digits}f}")
-
-        return Decimal(candidate, name)
-
 
 class Fraction(Token):
 
@@ -172,69 +123,6 @@ class Fraction(Token):
 
         return cls(mo, name, ancestor)
 
-    @classmethod
-    def random(
-        cls,
-        name="",
-        fix_num="",
-        min_num=-10,
-        max_num=10,
-        rejected_num=[0],
-        accept_num_callbacks=[],
-        fix_denom="",
-        min_denom=-10,
-        max_denom=10,
-        rejected_denom=[0, 1, -1],
-        accept_denom_callbacks=[],
-        irreductible=False,
-        not_integer=True,
-    ):
-        """ Generate a random Fraction
-
-        :param name: Name of the fraction
-        :param fix_num: if set, the numerator will get this value
-        :param min_num: minimum value for the numerator
-        :param max_num: maximum value for the numerator
-        :param rejected_num: rejected values for the numerator
-        :param accept_num_callbacks: list of function for numerator rejection
-        :param fix_denom: if set, the denomerator will get this value
-        :param min_denom: minimum value for the denominator
-        :param max_denom: maximum value for the denominator
-        :param rejected_denom: rejected values for the denominator
-        :param accept_denom_callbacks: list of function for denomerator rejection
-        :param irreductible: is the generated fraction necessary irreductible
-        :param not_integer: can the generated fraction be egal to an interger
-        """
-        if fix_num == "":
-            num = filter_random(min_num, max_num, rejected_num, accept_num_callbacks)
-        else:
-            num = fix_num
-
-        if fix_denom == "":
-            accept_callbacks = accept_denom_callbacks
-
-            if irreductible:
-
-                def prime_with_num(denom):
-                    return gcd(num, denom) == 1
-
-                accept_callbacks.append(prime_with_num)
-            if not_integer:
-
-                def not_divise_num(denom):
-                    return num % denom != 0
-
-                accept_callbacks.append(not_divise_num)
-
-            denom = filter_random(
-                min_denom, max_denom, rejected_denom, accept_callbacks
-            )
-        else:
-            denom = fix_denom
-
-        frac = MOFraction(num, denom)
-        return cls(frac, name)
-
     @property
     def numerator(self):
         """ Get numerator of the fraction
diff --git a/mapytex/calculus/API/tokens/polynomial.py b/mapytex/calculus/API/tokens/polynomial.py
index 1e005ee..649d4b8 100644
--- a/mapytex/calculus/API/tokens/polynomial.py
+++ b/mapytex/calculus/API/tokens/polynomial.py
@@ -61,10 +61,6 @@ class Polynomial(Token):
         """
         return cls(MOpolynomial(variable_name, coefficients), name)
 
-    @classmethod
-    def random(cls):
-        raise NotImplementedError
-
     @property
     def raw(self):
         raise NotImplementedError("Polynomial does not exists in python")
@@ -171,10 +167,6 @@ class Linear(Polynomial):
         Polynomial.__init__(self, mo, name, ancestor)
         self._mathtype = "affine"
 
-    @classmethod
-    def random(cls):
-        raise NotImplementedError
-
     @property
     @to_be_token
     def a(self):
@@ -258,10 +250,6 @@ class Quadratic(Polynomial):
         Polynomial.__init__(self, mo, name, ancestor)
         self._mathtype = "polynome du 2nd degré"
 
-    @classmethod
-    def random(cls):
-        raise NotImplementedError
-
     @property
     @to_be_token
     def a(self):
diff --git a/mapytex/calculus/API/tokens/token.py b/mapytex/calculus/API/tokens/token.py
index 2bb6380..df26e35 100644
--- a/mapytex/calculus/API/tokens/token.py
+++ b/mapytex/calculus/API/tokens/token.py
@@ -24,14 +24,6 @@ class Token(object):
         self._mathtype = None
         self._ancestor = ancestor
 
-    @classmethod
-    def random(
-        cls,
-        family="integer",
-        **kwds
-    ):
-        raise NotImplemented
-
     def explain(self):
         """ Yield every calculus step which have lead to self