books differentiate a function in two or more variables
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# Differentiation of Hyperbolic and Exponential Function
# Differentiation of the numerical function
# The roots of a univariate function
# Derivatives function noun preference
# open function to open files
# The concept of a function and its curve
# Function verses
# The function of the Qur'an
# Heuristic search and heuristic function
# Graphical representation of the function
# finite function
# Prepared function for prime numbers
# cosmic wave function
# wave function collapse
# Implicit Function Theorem
# The metaphysics behind the wave function
# Gaussian function integration
# Some of the function values
# Inverse function
# function in taylor series
