Questions tagged [calculator]
The calculator tag has no summary.
37 questions
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2
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How to make bc handle explicitly positive numbers? Or what alternative calculator can be used with such support?
Consider the following:
$ echo "-1" | bc
-1
$ echo "(1)" | bc
1
$ echo "+1" | bc
(standard_in) 1: syntax error
Minus sign and round braces are handled correctly but ...
- 297
-1
votes
1
answer
192
views
SpeedCrunch is Providing Slow Math Calculations
I'm having a performance issue with SpeedCrunch 0.12 in Debian 12:
sudo apt install speedcrunch
First of all, I love the UI of SpeedCrunch, as a calculator, but currently (for me) it is giving very ...
- 5,445
0
votes
0
answers
62
views
After cpu time hits 8128 seconds my calculations stops
I'm new to Linux and for my bachelor thesis I'm using it in order to calculate properties of materials in physics, therefore heavy calculations are involved. I've noticed that whenever Cpu time hits ...
0
votes
1
answer
93
views
Bash script to calculate within a CSV with or without zero
I have a script here that I am working with.
I would now like to expand this.
POSIXLY_CORRECT=1 awk -F ';' -v OFS=';' '
{print $0, NR == 1 ? "Price" : $1 ? $1 : $3 * 1.2}' < file.csv
...
- 11
1
vote
1
answer
472
views
evaluate terms in zsh without a command
I am using zsh with the prezto configuration framework. I want to be able to type in terms like 1 + 2 * (3 / 4) and get "2.5" out of it.
Those terms could be recognized because they only ...
- 113
-1
votes
1
answer
570
views
How to round to the correct nearest number in Linux bc?
How do we round to the correct nearest number in a Linux basic calculator BC?
user494414
0
votes
1
answer
148
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Debian on TI-Nspire
I am following this tutorial: https://ivoah.net/blog/2016/03/20/how-to-install-debian-on-a-ti-nspire/ (I have all of the required items.)
I am using an Acer Chromebook C720, which I dual-booted Debian ...
0
votes
0
answers
63
views
Why does wcalc output rounding symbol (~=) for integer operations (subtraction)?
I have noted, that man wcalc says:
--ints
Toggles whether long integers will be abbreviated or not. This conflicts with engineering
notation for large numbers, but ...
- 7,138
2
votes
2
answers
839
views
Calculations in shell Unix
I'm trying to work out the difference in 2 unix times to do a simple calculation (in a shell script) but it doesn't seem to work.
I have set 2 variables one called $d and the other $c.
Here's the ...
- 25
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votes
1
answer
793
views
How can i check if a number is higher or lower then another number?
I have files that contain 2 numbers like the following:
File 1
1
0
File 2
0
1
File 3
3
3
I want to compare the number on the first line to the number on the second line.
If the number on the first ...
- 93
2
votes
1
answer
694
views
Gnome's calculator: "Malformed expression"
I can't calculate a simple math expression 1.3e4 * 10 in the Gnome's calculator in scientific mode, I just get "Malformed expression" warning below the number pane. What am I supposed to do?
74
votes
21
answers
122k
views
Simple command-line calculator
Issue:
Every now and then I need to do simple arithmetic in a command-line environment. E.G. given the following output:
Disk /dev/sdb: 256GB
Sector size (logical/physical): 512B/512B
Partition Table:...
- 5,549
2
votes
1
answer
86
views
Financial calculations without floating point numbers in console?
I need to do simple financial calculations on Linux and had been using wcalc for this until I stumbled upon a wrong result caused by floating-point number issues. Is there a calculator (I really would ...
2
votes
1
answer
171
views
How to call a function from wcalc?
wcalc has built in constants in functions.
I'm trying to call the abs function.
If I input
wcalc abs(-2)
I get
syntax error
= -2
Unless I enter interactive mode where it works.
- 147
5
votes
4
answers
3k
views
currency conversion calculator in debian
sometime back I saw a calculator with currency conversion built-in with an option to update to current rates if so desired. Does anybody know what I'm talking about ? Saw it in debian.
- 13k