Round a floating point vector or matrix to n decimal places					

Rounds a floating point number to ndecimal places. Calls round.
Useful for tick labels etc.					

Just don´t work.
I uses: 
function out=redondeo(Ncifras,x)
// Return Ncifras significative digits for the given x 
if (x==0) then,
  out=0;
  return;
end
signo=sign(x);
x=signo*x;                 // x is now positive
pot=round(log(x)/log(10)); //log base 10 rounded to the nearest integer
// mprintf('%f\n',pot);
out=signo*round(x/10^(pot-Ncifras+1))*10^(pot-Ncifras+1); // include sign
return;
endfunction

		

good !I love it !		

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