Is there any way to store float values for the calculation purpose on the chain and define in the contract ?

[Nishu0]

Discord user ID

itznisargthakkar

Describe your question in detail.

I have written a contract to provide loans to borrowers based on the RWA staking worth. Now, on the pool creation, I am defining the interest rate at which the borrower needs to repay the loan amount. At the pool creation I am doing the expected amount calculation which is the float value and the interest rate is also the float value. I am providing the option to repay the loan on an EMI basis and for storing the expected EMI I also need the float value. So there any way to store the float value for the calculation purpose? in the Move as Well on the Chain

What error, if any, are you getting?

No response

What have you tried or looked at? Or how can we reproduce the error?

Whenever I do a calculation it will convert the float value to an integer automatically I know the type is an Unsigned Integer itself but need a type to store float values. Can you provide any example of how to store and do calculation on the float values?

Which operating system are you using?

Windows

Which SDK or tool are you using? (if any)

TypeScript SDK

Describe your environment or tooling in detail

No response

[gregnazario]

You can take a look at FixedPoint for your calculations https://aptos.dev/reference/move/?branch=mainnet&page=aptos-stdlib/doc/fixed_point64.md

That'll do math with a known fraction, rather than floating point.

Here's an example https://github.com/aptos-labs/aptos-core/blob/main/aptos-move/framework/aptos-stdlib/tests/fixedpoint64_tests.move#L77-L82