relativeway

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10 years, 243 days

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These are questions asked by relativeway

I'm looking for a quick way, preferrably without using any loops to 'map' a function using several vectors.

 

In the single vector case, this is quite easy, but with multiple vectors, I'm not sure if map is the correct command to use.

 

For example:

u:=<1,1,1>;
v:=<2,3,4>;

f:=(x,y)->ln(x-y);

 

What I'd like to do is create a new vector from the map of the function onto both vectors,...

I'm trying to write a for loop that will generate several procedures, which doesn't quite seem to work as expected.


Here is the sample code:

for j from 1 to 2 do
f[j]:=proc(x,y)
x+y^(j)
end proc;
od;

Then if you run the following, you get:

f[1](x,y) = x+y^3

f[2](x,y) = x+y^3

 

Whereas, I'd like to have:

f[1](x,y) = x + y^1

f[2](x,y) = x + y^2

Any suggestions on why the j value...

Hello,

 

I was wondering if someone could assist me with the code for listcontplot.

 

I've tried the following:

 

M:=Student[LinearAlgebra]:-RandomMatrix(4,4);

listcontplot(M);

 

But this does not work.  Is there any way to use listcontplot, listcontplot3d, or any other command to generate something similar to what Excel calls a Surface - contourplot?

Thanks.

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