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- Dictionaryfunction/ˈfʌŋ(k)ʃn/
noun
- 1. an activity that is natural to or the purpose of a person or thing: "bridges perform the function of providing access across water" Similar
- 2. a relation or expression involving one or more variables: "the function (bx + c)"
verb
- 1. work or operate in a proper or particular way: "her liver is functioning normally" Similar Opposite
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Mar 1, 2015 · $\begingroup$ something like f[u_[x_]] := x, but defining a function that takes as a second argument the derivative of the first is more involved. $\endgroup$ – acl Commented Feb 28, 2015 at 19:12
Using Integrate to define a function. 0. Permanently fixing a variable in the function. 5.
Mar 27, 2023 · I have a totally antisymmetric function of n arguments, f[a,b,c,d] = -f[b,a,c,d], which I would like to be multi-linear, e.g. f[a+x,b+y,c,d] = f[a,b,c,d] + f[x,b,c,d] + f[a,y,c,d] + f[x,y,c,d] How can I achieve this? It's easy enough to do for one argument, e.g. I could use. f[a_Plus,b__]:= f[#,b]&/@a, however I need this to work for all n ...
I need to define a function using the output of series, i.e. f[x_,M_]:= Normal[Series[Sin[x],{x,0,M}]]; Now, for reasons explained in Normal[Series[ ]] does not give a normal expression that I can't fully understand (due inexperience and lack of time), the above code does not work as is. I've managed to use f within other functions, like
Each function should document any side effects it makes. Things like creating a file, or updating a file, and such are considered a side-effect and can't be prevented by the language. But should be documented in the function header, so someone reading this function later on, can see right away what are its side-effects. $\endgroup$ –
May 18, 2016 · I need to be able to define the derivative of f1 as a new function f2. I have two issues. First, I cannot figure out how to specify that c[[n]] is a constant. The second is, I think that Mathematica is evaluating the differential each time f2 is called.
Feb 4, 2018 · This constructs a function which takes x as the argument, calculates Msum[x], and passes it inside into a function which calculates the requested Table. At this point it's equally simple to just create f such that you'll always use it in conjunction with Msum though.
Usually, we define a function as . F[x_] := x + 10 where the right-hand side is an expression. Now, I would like define a function where the right-hand side is the solution of a set of equations. Like . optV[V_, r_, λ_, μ_, η_, σ_] := V /.
Feb 11, 2019 · I have a function defined by . f[x_, y_] := 1/(x^2+1) + 1/(y^2+1); I can plot this function perfectly. Then I want to StreamPlot the gradient of that function so I do: myGrad[x_, y_] = Grad[f[x, y], {x, y}]] (I also tried some different approaches with := and Evaluate and Function here.) Sadly . StreamPlot[myGrad[x, y], {x, -2, 5}, {y, -2, 5}]
Define function of a list from a function of its elements (Set) 2. Define Function with Many Variants. 1. ...
