Putting a function in the argument of a function

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Putting a function in the argument of a function

datcomputerguy 24 Jan 2011 19:51

I would like to create a function say trap() I would like the input variables to be fun, a, b, n

So the function looks like: trap(fun,a,b,n)

I would like to be able to put in trap(f1(x),0,2,10)
or something along those lines. I would like to be able to input the function I want to use for the function.

How do you do this because I just keep getting argument errors

Re: Putting a function in the argument of a function

mrmprog 26 Jan 2011 02:50

I am not sure what you mean. Do you want to create a custom function?

Re: Putting a function in the argument of a function

BlakPilar 26 Jan 2011 02:59

This is the TI-Nspire forums mrmprog lol. It uses code similar to that of a computer.

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Projects: BexIDE (hold), Hadean.NET, Legend of Zelda: Link to the Future

Re: Putting a function in the argument of a function

mrmprog 29 Jan 2011 02:36

Oops…
Sorry!

*mrmprog goes and buries head in hole

Re: Putting a function in the argument of a function

Xeda Elnara 29 Jan 2011 03:11

's okay. When I first read it, I was going to reply about how it works on the 89t, but then I noticed the "NSpire" part way up at the top (out of site… or at least in the ignorable range). :P

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Z80 Assembly>English>TI-BASIC>Python>French>C>0

Re: Putting a function in the argument of a function

devourer of souls 04 Feb 2011 22:05

"trap(fun,a,b,n)"

the syntax would only work if fun and a, b, & n) were stored as a variables.

"trap(f1(x),0,2,10)"

f1(x) is not a valid argument, unless "f1(x)" was treated as a string, or if f1("x") was f1 of the string x; I am pretty certain that is not what you were trying to do.

if you defined f1, make sure you used return a, with a being a value you designate it to return.

define func trap(f1(x),a,b,c)=
whatever here.
endfunc

should be:

define finc trap(x,a,b,c)
local d
d:=f1(x)
whatever here.
endfunc