This example and notation are taken from Bard (1974). A two-equation model is used to fit U.S. production ... The following code computes the logarithm of the likelihood function: /* 2. Compute Sigma ...

The equation of a straight line can also be written in the form \(f(x) = mx + c\). This is called function notation and is just another way of expressing the relationship between two variables.

For example in mechanics ... The rate of change of a function \(f(x)\) with respect to \(x\) can be found by finding the derived function \(f\textquotesingle(x)\). For an equation beginning ...