Instumental variable (IV) algorithms are presented for multiple input-single output systems where the characteristic polynomials of the transfer functions associated with each input are not ...

In this article, I describe generalization activity as an opportunity to learn about seventh graders' understanding of functions. A group of students who had studied functions modeled a multivariable ...

mypy supports Final for local variables - it errors out, if DIR is assigned twice. Constants should be uppercase, but ruff gives N806 non-lowercase-variable-in-function.

Many types of economic problems require that we consider two variables at the same time. A typical example is the relation between price of a commodity and the demand or supply of that commodity. The ...

The value of variable orchard inputs New technology helps to make precision nutrient management easier to execute. These maps show the variability in soils in an apple orchard for both phosphorus, at ...

Add a description, image, and links to the two-variable-functions topic page so that developers can more easily learn about it ...

A variable cost is an expense that changes in proportion to increases and decreases in production or sales volume.