how to obtain e number (labview)

[nayobi11]

Hi, I'm quite new in labview and I'm doing some personal projects and I would like to know which is the best way to calculate the e number depending on the presition desired, with this formula e = (1+1/n)^n,  and show result as it has been defined with precision.

Many thanks

[Sam_Sharp]

Have you looked in the maths palette? From here you can implement any mathematical expression/equation.

I suggest you take a look at some of the free LabVIEW tutorials. 

You can change the displayed precision of the number by right clicking on the control/indicator, right clicking on it and selecting 'display format'.

[GerdW]

Hi nayobi,

in addition to Sam's comment: there also is a "mathematics" function palette with a power function.

And you should also learn the basic about precision of float calculations. Wikipedia has articles on that topic…

[nayobi11]

Thanks for both answers, I've tried with Formula Node and I added the code:

int i;
float e[10];
for (i=0;i<10;i++)
e[i]= ((1+1/n[i])**(n[i]));

with proper input/output, and it works!

Thank you,

Nayobi

[GerdW]

Hi Nayobi,

why don't you use "real" LabVIEW functions?