Root Latex

ROOT
1

Dear experts,

I want to print the plus/minus mathematical symbol directly on my screen (out of a canvas) by using this small code:

void ratio() {
…
cout << hist->GetBinContent(1) << “#pm” << error<<endl;

}

but instead it prints the string: #pm.

The examples that I saw are using canvas. Do you know I can do this is easily?

Regards

2

This is the TLatex syntax. It works for the graphics output only. Not for the terminal output.

3

Dear couet,

it is not possible then.

Thank you for your answer.

Regards

4

In C++ you can use Unicode characters, for plus-minus signs it is cout << "\u00B1" << endl;
Problem might be with root interpreter, as far as I see, in root 5.34/30 with Cint result is following:

root [0] cout << "\u00B1" << endl; u00B1
in root-6.03/03 with Cling

root [0] cout << "\u00B1" << endl; ±

5

To look for a unified character you can go here:
fileformat.info/info/unicode/char/search.htm

6

Dear rlalik,

thank you for your answer.
Actually I’m using root 5 and it’s not working.

Regards

7

You can try to put your code in a macro and use AClic.

file pm.C:

#include <iostream>

void pm(){
   printf("\u00B1\n");
}
root [0] .L pm.C+ 
Info in <TMacOSXSystem::ACLiC>: creating shared library /Users/couet/roottest/./pm_C.so
root [1] pm()
±
root [2]
8

Dear Rlalik and Couet,

Thank you for your help. I switched to root 6 and it’s working.

Regards