Content-Type: text/x-zim-wiki
Wiki-Format: zim 0.4
Creation-Date: 2016-08-23T17:43:28+01:00

====== division ======
Created Tuesday 23 August 2016

This is rather messy if needing decimals in the answer.

echo (math "45 / 9") will give the answer as 5, as expected.

However, echo (math "47 / 9) will also give 5 as the answer, because it is using integer arithmetic.

Many suggestions on line, but the easiest way is to invoke bc directly. Here is an example

echo (echo "scale=5; 37/13" | bc)

This will give the answer 2.84615

This pattern will work for other calculations

echo (echo "scale-5; sqrt(2)") will give 1.41421

It can also be used to put a value into a variable.

set result (echo "scale=5; 27.36^3" | bc)

echo $result 
20480.86425