Skip to content

Update README for version 0.1.8 #27

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
davassi merged 1 commit into from
Jun 14, 2025
Merged

Update README for version 0.1.8 #27

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 13 additions & 3 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ Yarer can be used also from command line, and behaves in a very similar manner t

```rust
$ yarer
Yarer v.0.1.7 - Yet Another Rust Expression Resolver.
Yarer v.0.1.8 - Yet Another Rust Expression Resolver.
License MIT OR Apache-2.0
> (1+9)*(8+2)+0!
101
Expand All @@ -93,11 +93,21 @@ Yarer can be used also from command line, and behaves in a very similar manner t
```
## News and Updates

### Version 0.1.8

Yarer 0.1.8 comes with several enhancements:

* Decimal numbers are now represented using the `num-rational` crate for higher precision.
* Added new math functions: `floor`, `ceil`, `round`, `exp`, `pdf` and `cdf`.
* Expressions can be chained with semicolons, e.g. `x=2; y=3; x*y`.
* Variable assignments inside expressions are handled more reliably.
* This README includes a demonstration of the Black–Scholes formula.

Starting with Yarer version 0.1.7, natural numbers are implemented internally using [BigInt](https://crates.io/crates/num-bigint) from the [num crate](https://crates.io/crates/num). Now it is possible to do calculations with arbitrarily large natural numbers.

```rust
$ yarer
Yarer v.0.1.7 - Yet Another Rust Expression Resolver.
Yarer v.0.1.8 - Yet Another Rust Expression Resolver.
License MIT OR Apache-2.0
> 78!
1132428117820629783145752115873204622873174957948825.....
Expand Down Expand Up @@ -164,7 +174,7 @@ Using Yarer, the Black–Scholes formula for a European call option can be evalu

```rust
$ yarer
Yarer v.0.1.7 - Yet Another Rust Expression Resolver.
Yarer v.0.1.8 - Yet Another Rust Expression Resolver.
License MIT OR Apache-2.0
> S=100;K=100;T=1;r=0.05;sigma=0.2;
> d1=(ln(S/K)+(r+sigma^2/2)*T)/(sigma*sqrt(T))
Expand Down