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Hi, How can I declare a variable as lon double complex? I want to use powl()and sqrtl() functions with complex number that I have calculate before and they are very big... thanks

how can i read complex numbers from the file: [ 3.2+4.1i 5.3-6.4i; 4.3-9.1i 5.3+5.4i ] the file has exactly this format and I have problems with the characters... the only way i could think is to read it as char and write two other files with the real and imag part without [,],i,; and the...

You are right Ankan, thanks a lot...

you are right, i have to learn a lot of things... I'll try it... thanks.

thanks Lim, but I'm not an advanced programmer yet... I have no idea how to put any dll with my program, that's why I am looking for a function... thanks a lot anyway...

I did it... thanks ralf again...

thanks a lot ralf, I'll try it...

sorry I haven't express my problem correct... I just want to use the variables value to declare the size of the array. main(){ ...... d //my integer variable that I have calculated before. float A[d][d]; ...... } thanks a lot ralf anyway...

Hi, How can I use a variable that I have calculated previous in my program as an array index? I mean how can i make it constant? Could you give me an example? Thanks in advanse...

Hi, How can I use a variable that I have calculated previous in my program as an array index? I mean how can i make it constant? Could you give me an example? Thanks in advanse...

Hi, I am a c++ user, I'm looking for a c++ function to calculate the eigenvalues and eigenvectors of a comlex matrix. I need it for a mobile tracking program that I'm working on (MUSIC algorithm). Can anybody help me? thanks in advance, thanos.

Hi, I am a c++ user, I'm looking for a c++ function to calculate the eigenvalues and eigenvectors of a comlex matrix. I need it for a mobile tracking program that I'm working on (MUSIC algorithm). Can anybody help me? thanks in advance, thanos.

Hi, I am a c++ user, I'm looking for a c++ function to calculate the eigenvalues and eigenvectors of a comlex matrix. I need it for a mobile tracking program that I'm working on (MUSIC algorithm). Can anybody help me? thanks in advance, thanos.

Hi, How can i make two different programs interchange data. I'm using Borland C++ 5.02. I want the first program to send a matrix to second one which returns two matrixes with the eigenvalues and eigenvectors of the initial matrix to the first one. The problem is that I can't use the second...

Thanks a lot James P. Cottingham it works...

thanks matt, but could you be more specific?

Hi, I'm using Borland c++ 5.02, and I'm a new user. In my program I want to call another c++ program that i didn't have its code. Actually I used Matlab to C++ converter (in Matlab 6) and i have only the filename.exe. Is it possible and how?