Somehow, it seems speedcrunch has a problem in dealing with big numbers. For example, I can do:
(3(7^204+7^202+7^200)+7(3^204+3^200)-210) mod 10
in the calculator that comes with linux and get the right result (which is 7), but speedcrunch overflows and outputs 0. I've set the result format to fixed decimal and precision to 50 digits, but that doesn't seem to make a difference.
Edit: Just tried it with insect, which also gets it wrong.
If you mean bc as the 'calculator that comes with linux', thats somewhat to be expected. Speedcrunch deals with a maximum integer size of 256 bits (~1.15e77), while bc is an arbitrary precision calculator.
(3(7^204+7^202+7^200)+7(3^204+3^200)-210) mod 10
in the calculator that comes with linux and get the right result (which is 7), but speedcrunch overflows and outputs 0. I've set the result format to fixed decimal and precision to 50 digits, but that doesn't seem to make a difference.
Edit: Just tried it with insect, which also gets it wrong.