There is nothing special about "(float)j". Awk interprets it as a concatenation of two strings. First the uninitialized variable "float" is treated as an empty string, then the variable j is converted to string using the default "%.6g" format.
Does anyone have a simple way of doing floating point ("fp") division? For example, if I divide 3 by 5, I can get 0.6. The built-in calc (`bc`) will perform fp multiplication, but not division, at least not straight-up (i.e., starting bc and just typing in 3/5).
I am trying to do this using... (1 Reply)
hi all, i have the following problem using awk in a script
i want to read the values from a column with real numbers and calculate the mean.the problem is that when i use a statement such as this
num = $4
i cant find a way to convert the variable from string to floating point to perform... (7 Replies)
hi, :)
I have a file like this
10.456
123.567
456.876
234.987
........
.......
What i want to do is ia have to add all those numbers and put the result in some other file.
Any help pls.
cheers
RRK (8 Replies)
Hi,
I am trying to write a script to extract multiple sets of data from a chemistry output file. The problem section is in the following format...
Geometry "geometry" -> "geometry"
1 Pd 46.0000 -0.19290971 0.00535260 0.02297606
2 P ... (7 Replies)
Hello,
i have some variables say:
x=1.4
y=3.7
I wish to round off these values to :
x = 2 (after rounding off)
y = 4 (after rounding off)
I am stuck.
Please help. (7 Replies)
Hi,
I am compiling "HelloWorld" C progam on 32-bit CentOS and i want to execute it on 64-bit CentOS architecture.
For that i copied the a.out file from 32-bit to 64-bit machine, but while executing a.out file on 64bit machine I am getting "Floating point exception error".
But we can run... (3 Replies)
Hi,
Could any one tell me how to compare to floating point no. using test command. As -eq option works on only intergers.
i=5.4
if
then
echo "equal"
else
echo "not equal"
fi
here output will be equal even though no. are unequal.
Thanks,
ravi (1 Reply)
is it not possible to simply di aritmetic without using bc or awk
i have tried folllowing operatrions but they support only integer types plz suggest me code for floating using values stored in the variables.the ans i get is integer and if i input floating values i get error numeric constant... (6 Replies)
Anyone help me i cant found the error of floating point
if needed, i added the code complete
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
typedef struct
{
int hh;
int mm;
int ss;
char nom;
int punt;
}cancion;
typedef struct... (9 Replies)
I have a number, which I want to convert into the nearest floating number upto two places after the decimal point.
E.g.
1.2346 will become 1.23
but
1.2356 will become 1.24 .
Similarly
0.009 will be 0.01
and
0.001 will be 0.00 or 0.0 (not 0, wnat to keep the decimal... (1 Reply)
Discussion started by: hbar
1 Replies
LEARN ABOUT PHP
is_float
IS_FLOAT(3) 1 IS_FLOAT(3)is_float - Finds whether the type of a variable is floatSYNOPSIS
bool is_float (mixed $var)
DESCRIPTION
Finds whether the type of the given variable is float.
Note
To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(3).
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is a float, FALSE otherwise.
EXAMPLES
Example #1
is_float(3) example
<?php
if (is_float(27.25)) {
echo "is float
";
} else {
echo "is not float
";
}
var_dump(is_float('abc'));
var_dump(is_float(23));
var_dump(is_float(23.5));
var_dump(is_float(1e7)); //Scientific Notation
var_dump(is_float(true));
?>
The above example will output:
is float
bool(false)
bool(false)
bool(true)
bool(true)
bool(false)
SEE ALSO is_bool(3), is_int(3), is_numeric(3), is_string(3), is_array(3), is_object(3).
PHP Documentation Group IS_FLOAT(3)