Is there anythng called 'zeroes' and 'infinity' in C++?

[prads]

hello,
I am trying to write a few matlab code lines in C++. I want to write these. Pls help!!!!
In matlab it is:
x=zeros(1,10);
y=inf(1,5);
How do i write this in C++????????
thank u in adv,
prads

[oler1s]

I don't have to access to Matlab on this computer. Mind explaining what those two Matlab functions do with examples, and why you can't replicate their functionality, so I don't have to do the research myself?

[prads]

hello,
I am trying to write a few matlab code lines in C++. I want to write these. Pls help!!!!
In matlab it is:
x=zeros(1,10); // a matrix 'x' is created with 1 row and 10 columns all having zeros
y=inf(1,5); // a matrix 'y' is created with 1 row and 5 colmns all having infinity.
How do i write this in C++????????
Is there anythng called ZEROS and INFINITY in C++???????
thank u in adv,
prads

[oler1s]

There are no functions called zeroes and infinity in C++. You have to replicate their equivalent using your knowledge of C++.

This is a double post, as you had already started a thread on this. Furthermore, your excessive use of bad punctuation, combined with poor spelling, suggests that you aren't really interested in figuring out the answer so much as one of us giving you the answer.

If you want some help, you would do well to give us the following information: what is the context of these functions? What program are you creating? If you need Matlab functions, why use C++? If you still need to replicate those functions, what have you thought as a possible solution?

[RRick]

Ignoring the spelling :-) There are a couple of issues you are going to have to figure out.

First, how are you going to convert from the MatLab arrays to C++ arrays. Since you are dealing with one dimensional arrays, use the same in C++.

Second how to initialize the arrays? If the arrays are small, then array initialization is the simplest way to go.

// Init array with 3 values of 33 each
int array[3] = { 33, 33, 33];

If the arrays are large, then a for loop is best.

Finally, how to set values to zero? That's easy, just do it. Infinity is a little harder. For each data type (i.e. int, long, double, etc) there are corresponding INT_MAX, LONG_MAX, etc. values in the include file limits.h. Use these values in your initialization.

[Koolioman]

I've done a lot of math programs, and I know that if you divide a number by zero and convert is to a string, it will say infinity.

[RRick]

That might be true for floating point, because floats have special values for nan and inf. I don't know if you can use the float inf value for further calculations ( I doubt it).

It won't be true for integers. For integers, you'll get a floating point exception.