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Error in mathematical calculation using bc

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# 1  
Old 12-23-2009
Error in mathematical calculation using bc
I am getting the error:
Code:
Runtime error (func=(main), adr=10): Divide by zero

When executing the mathematical expression:
Code:
echo "scale=2; 1-(0/0)"|bc

How to overcome this?
Last edited by proactiveaditya; 12-23-2009 at 07:48 AM..
# 2  
Old 12-23-2009
What is (0/0) supposed to mean?

You can't divide by zero!
# 3  
Old 12-23-2009
I need to perform a mathematical operation:
Code:
1-($a/$b)

,where a and b can be any integer or floating point number and sometimes a=b=0.
# 4  
Old 12-23-2009
Hi proactiveaditya, you can test if b=0 and if it is then either set a and b to your own fantasy values or do not use bc in that case. Also use scale instead of scala.
# 5  
Old 12-23-2009
Well, then you'll have to do the same thing as in any programming language: catch the boundary case where $b is zero, and throw an error back to the user before bc can.
# 6  
Old 12-23-2009
@Scrutinizer
scala,thats a typo. Thanks for pointing out.

---------- Post updated at 06:54 AM ---------- Previous update was at 06:52 AM ----------

Got your point guys.
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