Inside a Proc() that I am writing I cannot do the following:

intercepts[b]:=intercepts[b+1];

where b is a number and intercepts is an array of size greater then or equal to b+1.  My confusion is that that same concept works outside of a Proc.. Am I missing something?

 

Thanks,

 

Josh

Hello,

I've changed my PC so I've tried to reinstall Maple 11 from XP to Vista (with the Vista installer of Maple). I've got the following issues:

how do u approximate matrix entries to a number of significant figures?

PLEASE HELP

x nadine

I have two sets of scatter data.  Each set has been fit by a different function which is dependent on independent variable N.  The x-axis is 1/N. 

Set 1:

Scatter data is (0.125, -4.72557), (0.08333, -4.53944), (0.0625, -4.48229), (0.05, -4.42733)

where the x-axis is 1/N with N = 8, 12, 16, 20 and the y-axis is a function in terms of N as well: -8.55704612297018*SQRT(1-0.73962210555774*COS(PI()/(N+1)))

Set 2:

Scatter data is (0.125, -1.7312), (0.08333, -1.96658), (0.0625, -2.1274), (0.05, -2.187)

Hey, I want to look into something about n! I wrote a procedure like: > myfactorial:=proc(N) > local ptlist,k: > uses plots: > ptlist:=NULL: > for k to N do > ptlist:=ptlist,(k,k!): > od: > pointplot([ptlist],color=red); > end: myfactorial(20); works fine myfactorial(50); and more than 50 it says floating point overflow.please shorten axes.. is there a way to make it work? and n! is defined as int(x^n*exp(1)^(-x),x=0..infinity); why the output is Gamma (n+1) insteas of 1? simplify(%/n!); # can give me "1" and how do i get maple to plot

What I mean is, I have a set of variable, and a set of equations. The thing is, there are a lot of variables, and not enough equations to uniquely determine them unless the 'rules' are applied, which are:

1) all x_i that exist are integers between 1 and 9, i.e. x_i is in {1,2,3,4,5,6,7,8,9}

2) if x_i exists, then x_i<>x_i+1 AND x_i<>x_i+10

In an effort to draw the unit normal of a vector, n, to a curve defined by a radius curve, r, the following command is inputted to Maple but recieves the error also noted below.

arrow([0,0,0],eval(convert(n,list),t=0*Pi),shape=cylindrical_arrow,color=black);

Error, (in simpl/abs) abs is not differentiable at 0

 However a plot of the components of the unit vector shows that it is well behaved at 0, i.e. it has values of <-1,0,0>

I'm trying to write a sequence on Maple11 that outputs the determinant of the vandermonde matrix for  a given n in terms of x_i, i=1...n. The procedure shud have a single argument n so that it begins VanDet:=proc(n).

PLEASE HELP

xxx nadine

I wonder if maple has a way for multiple inputs to functions.  For example, given:

f := (x,y) → x + y

is there a way to pass in (x,y) = (0,0) AND (1,1) at the same time?   I tried:

f({0,0},{1,1})

But the output doesn't make sense to me.I have wanted this feature as long as I have had maple, but gave up on this possibility.  Now by accident I discovered something quite similar. when checking maple's solution to a system of equations.

So I was searching the net and such for and idea of how to do this, i found: www.maplesoft.com/Applications/appviewer.aspx

The first example is pretty self explanitory, now my question is for more complicated functions is there a maple method to do this quicker, or do i have to do the beat it with a stick method?

 

Thanks!

Ok, I've got a matrix where the elements are lists of length 3, the first element tells you what sort of entry it is; the important thing to know here is that if the first entry is one then the second entry (and third) is a variable.

Hi, I'm currently using MAPLE 11

I'm trying to multiply series(about 30) matrix[ Matrix name is(F(x[k],y[k],j[k])) by using the product command

i.e.

product(F(x[k],y[k],j[k]), k=1..10); 

when I use the above command the following. error occurs.

[Error, (in rtable/Product) invalid arguments]

I've figured out the product command only works for real numbers, not matrix

But the problem is ... then what command should I use?

 

Ok I have already defined f as a procedure earlier on, so here is where i am having a problem:

 

Hi Guys, im wondering if you can help me with this for loop problem

so i have the array k[20,20], so it has 400 hundred entries, each entry has a number, but one entry has a number higher  then the others,

e.g. k[1,5]=6,k[1,6]=40,k[4,4]=20

so in the loop below i intend for the a and b element of the entry with the highest value to be assigned to tempa[2,1] and tempa[2,2], but i am not getting this outcome, please have a look

 

My sincere apologies for this incredibly elementary question.  I just can't find the answer.  Please refer me to an appropriate resource for this information if you know of one so that I won't bother the forum with such inane questions in the future.

Here is a simplfied example of what I'm trying to do (when my code didn't work, I created progressively simpler examples until I got to this):

--------------------------

a := array(1..3);

for i from 1 to 3 do

    a[i] := t -> i*t

end do;