The bc tag has no wiki summary.

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### Wrong results when comparing two numbers with bc (bash)

I’ve encountered an error, probably a bug in bc. I encountered it when trying to compare two numbers on a script in bash. It turns out that when I do:
echo "1.1E-2<1.1E-1" | bc -l
It returns 1 ...

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**1**answer

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### Get GNU bc to print a newline character

GNU bc is very unconventional. I can't find anything online about how to get it to print a newline character. I'm trying to get it to print the first 16 hexadecimal digits of the sines of the integers ...

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### Why is `bc` ignoring my `obase`?

>>> bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
ibase = 16
obase = 56
...

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1k views

### Division with bc (bench calculator)

bc
1/2
0
5/3
1
10/3
3
When a fraction is entered into bc, the result is truncated to an integer. How can this behavior be avoided, such that the output of a division ...

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522 views

### Best floating point solution for bash script?

I use bash calculator for floating point calculations and I have to use input redirection and backtick (`) symbol in scripts.
As normal bracket $[math operation] and expr doesn't support float ...

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111 views

### Multiplication in bc (bench calculator)

$ echo 2*1024|bc
20480
$ echo 2.0*1024|bc
2048.0
$ echo 2*1024.0|bc
2048.0
What's going on here then?
Update:
dc manages fine
$ echo "2 1024 * p"|dc
2048

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### Dividing with Gnu's bc

I'm just starting with Gnu's bc and I'm stuck at the very beginning (very discouraging...). I want to divide two numbers and get a float as result:
$bc
bc 1.06.94
Copyright 1991-1994, 1997, 1998, ...

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### GNU BC: “modulo” % with scale other than 0

If the scale is other than zero, calculations with %, such as 3%2 and 46%4, tend to output 0. How is the algorithm designed with the scale other than 0?
bc
scale=10
print 4%3 // output 0