[SOLVED] Is there a fast way to convert E notation to decimal? example: -9.7205E-01

[ultrus]

Hello,

I'm playing around with the Yale Bright Star Catalog, thinking of the best way to convert the E notation provided into decimal numbers. I know how to do it the hard way by parsing the string and doing the math. Is there a pre-built function for this though?:

 

-9.7205E-01 = -.97205

2.3496E+01= 23.496

-1.3808E+01 = -13.808

 

Thanks for the feedback.

[PFMaBiSmAd]

echo rtrim(sprintf("%f", -9.7205E-01),"0") . "<br />";
echo rtrim(sprintf("%f", 2.3496E+01),"0") . "<br />";
echo rtrim(sprintf("%f", -1.3808E+01),"0") . "<br />";

[ultrus]

PFMaBiSmAd,

You the man! That helps simplify things a lot. A have to parse a file with over 28,000 of those, and that should save some time.

 

Thank you,

[PFMaBiSmAd]

The number of course can be in a variable, so a loop could be used.

[ultrus]

Yep yep. I plan on looping through each line of a file, getting and converting numbers, and adding to a database. I could just imagine the pain involved in converting each number one at a time. ouch! Thanks