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Active Forums => QB64 Discussion => Topic started by: Dimster on October 16, 2018, 11:41:53 am

Title: Rounding Scientific Notation
Post by: Dimster on October 16, 2018, 11:41:53 am

Is there a way to round scientific notation to whatever number of decimal places you want? Here is an example however it's cumbersome and uses String variables. If I could I would like to stay with pure numeric values/variables.

  _FULLSCREEN

a = 52 / 3589
b = a * 100
c = INT(b)
d = b - c
e$ = STR$(d)
f$ = LEFT$(e$, 6)
f = VAL(f$)
g$ = RIGHT$(e$, 3)

PRINT
PRINT a
PRINT b
PRINT c
PRINT d
PRINT e$
PRINT f$
PRINT f
PRINT g$
IF VAL(g$) >= 500 THEN f = f + .0001
PRINT f

Title: Re: Rounding Scientific Notation
Post by: bplus on October 16, 2018, 11:46:55 am

Check out Print Using: http://qb64.org/wiki/PRINT_USING

Title: Re: Rounding Scientific Notation
Post by: SMcNeill on October 16, 2018, 12:57:10 pm

Isn't this just a case of:

Result = INT(number * 10 ^ digits) / 10 ^ digits

For 2 decimal places:  X = INT(y * 100) / 100
For 3 decimal places:  X = INT(y * 1000) / 1000

Title: Re: Rounding Scientific Notation
Post by: Dimster on October 16, 2018, 04:41:55 pm

Thanks guys, I can use both solutions. I appreciate the help.

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