This CD is part of the distribution of LeActiveMath and is used in the exercises suite. http://www.leactivemath.org/cd numerical1 http://www.leactivemath.org/cd/numerical1.ocd private 1 2005-06-30 Numerical evaluation in the exercise suite of LeActiveMath. numerical_approximation application The function that, given a symbolic expression evaluates it to a numerical approximation represented by the second argument, namely the number of decimal places. The result is a floating point number. The number 3.141592654 may be obtained as a result of evaluating the next example: 10 numerical_value_at application The function that, given a function f and a list a of equations assigning values for the variables, evaluates by numerical approximation f(a). The result is a floating point number.