Search results
Results from the WOW.Com Content Network
Probably the simplest change is the scaling and shifting of variables, that is replacing them with new variables that are "stretched" and "moved" by constant amounts. This is very common in practical applications to get physical parameters out of problems. For an n th order derivative, the change simply results in
A substitution σ is called a linear substitution if tσ is a linear term for some (and hence every) linear term t containing precisely the variables of σ ' s domain, i.e. with vars(t) = dom(σ). A substitution σ is called a flat substitution if xσ is a variable for every variable x.
The placeholder may be a variable name, or in some languages an arbitrary expression, in either case evaluated in the current context. String interpolation is an alternative to building string via concatenation , which requires repeat quoting and unquoting; [ 2 ] or substituting into a printf format string , where the variable is far from where ...
In compiler theory, common subexpression elimination (CSE) is a compiler optimization that searches for instances of identical expressions (i.e., they all evaluate to the same value), and analyzes whether it is worthwhile replacing them with a single variable holding the computed value. [1]
As cases of the HMPV virus continue to increase in the U.S. and in China, here's what you need to know about the virus.
Fresh variables may be used to replace other variables, to eliminate variable shadowing or capture. For instance, in alpha-conversion , the processing of terms in the lambda calculus into equivalent terms with renamed variables, replacing variables with fresh variables can be helpful as a way to avoid accidentally capturing variables that ...
The first 12-team College Football Playoff field is finally set, and not without some controversy.But the games that will decide the national championship are nonetheless almost here and, as the ...
A new study found a link between cytomegalovirus (CMV) and Alzheimer's disease. Here's what a neurologist wants you to know, plus how to protect yourself.