Hello All,
I have an answer formula "(((([y]/100)+1)**18-1)*[x] *1000)/([y]/100)" in a calculated question of WebCT CE6. I need to convert this question on the Moodle version. Please note that x and y are variables on this question.
Please help me.
In reply to Ranjith Valliyedath
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Re: Using exponent function in the calculated Questions
by Ranjith Valliyedath -
Hi Pierre,
Many thanks for your reply. This will help. But i am still struggling to get the same answers which are appearing on the WebCT. Could you please provide me a answer formula for this one?
Regards,
Ranjith.
In reply to Ranjith Valliyedath
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Re: Using exponent function in the calculated Questions
by Tiffany Hoefer -
I am having a similar problem. I tried to apply Pierre's example to my particular problem but I obviously still can't apply the logic. Our instructor needs to measure exponents and decay and has the following question:
The Mendes family bought a new house {years} years ago for ${purchase},000. The house is now worth ${current},000. Assuming a steady rate of growth, what was the yearly rate of appreciation? Round your answer to the nearest tenth of a percent (1.2% etc)
They want the student to solve it by using the following formula: 1 minus {current} divided by {purchase} to the power of 1/{years}.
When I try to write the answer formula as: 1-{current}/{purchase}pow(1/{years}), I receive the error "the function 1pow is not supported". I have tried many other incarnations but this was the most promising error message of all. I usually receive a syntax error which leads me to believe that for those I just had it totally wrong.
Any ideas on how to render this formula? Any kind words are appreciated.
In reply to Tiffany Hoefer
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Re: Using exponent function in the calculated Questions
by Tiffany Hoefer -
Pierre,
Thank you so much for your help! These are quite tricky, and I really appreciate you getting me past the dreaded error screen.
In reply to Ranjith Valliyedath
Re: Using exponent function in the calculated Questions
by Peter Halverson -
Just a comment...
You should take a look at the "Formulas Question Type" for Moodle.
https://moodle.org/plugins/view/qtype_formulas
I like it better than the "Calculated Question Type."
It does require an administrator to install it and it does take some effort to learn how to use it, but I think its easier than Calculated.
---Peter H.
In reply to Peter Halverson
Re: Using exponent function in the calculated Questions
by Tiffany Hoefer -
Peter,
Thank you for the suggestion. I'll definitely give it a look and see if our administrator will buy in. Thanks!!