08-18-2008
Thanks all, in case you are interested -- I ended up using sed:
floatVar1=$(echo $Var1 | sed 's/\([0-9]*\(\.[0-9]*\)\?\)[eE]+\?\(-\?[0-9]*\)/(\1*10^\3)/g;s/^/scale=30;/'| bc)
There are some difficulties with the specific scientific notation my data files were using. (having an extra + after the E, 1.00e+1 = 10), so I had trouble getting bc to work, but I may have just messed up. However, the idea behind the question was supposed to be specifically how to convert something from scientific notation to float. Sorry for the confusion.
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LEARN ABOUT LINUX
strfromf
STRFROMD(3) Linux Programmer's Manual STRFROMD(3)
NAME
strfromd, strfromf, strfroml - convert a floating-point value into a string
SYNOPSIS
#include <stdlib.h>
int strfromd(char *restrict str, size_t n,
const char *restrict format, double fp);
int strfromf(char *restrict str, size_t n,
const char *restrict format, float fp);
int strfroml(char *restrict str, size_t n,
const char *restrict format, long double fp);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
strfromd(), strfromf(), strfroml():
__STDC_WANT_IEC_60559_BFP_EXT__
DESCRIPTION
These functions convert a floating-point value, fp, into a string of characters, str, with a configurable format string. At most n charac-
ters are stored into str.
The terminating null character ('