Update README.md

README.md

@@ -2,28 +2,24 @@
 
 RSC is also designed with the goal to not become bloated software. **RSC will not receive frequent updates, but that does not mean it is old or unmaintained.** That being said, RSC may still receive internal updates with relation to speed or resource usage.
 
-The abbreviation can be interpreted in two majorly different ways:
-* Rust Scientific Calculations library
-* Rust Scientific Calculator
-
 # Obtaining RSC
-If you would like to install RSC as a program onto your computer, you can either build the package or download it from the releases. More information [here](https://github.com/asmoaesl/rsc/wiki/Executable).
+If you would like to install RSC as a program onto your computer, there is information [here](https://github.com/asmoaesl/rsc/wiki/Executable).
 
 # Size
-RSC is ~350 lines of code. Executable RSC is about 387KiB debug; 266KiB release (on Windows).
+RSC is ~500 lines of Rust code.
 
 # Performance
 RSC computes next to instantaneously, even with debug builds. The following output is the time (in nanoseconds) the different operations take to process `sqrt((6.1--2.22)^2 + (-24-10.5)^2)`, where "bench_eval" is all of them at once. More info at [lib.rs](https://github.com/asmoaesl/rsc/blob/master/src/lib.rs).
 ```rs
-PS C:\Users\Luke\Documents\Projects\rsc\target\release> cargo bench
-    Finished release [optimized] target(s) in 0.01s
-     Running deps\rsc-d36a195311b11bb0.exe
+PS C:\Users\Luke\Documents\Projects\rsc> cargo bench
+    Finished release [optimized] target(s) in 0.02s
+     Running target\release\deps\rsc-74a7d2c06ab98eee.exe
 
 running 4 tests
-test tests::bench_compute  ... bench:         174 ns/iter (+/- 30)
-test tests::bench_eval     ... bench:       5,678 ns/iter (+/- 300)
-test tests::bench_parse    ... bench:       1,480 ns/iter (+/- 149)
-test tests::bench_tokenize ... bench:       3,774 ns/iter (+/- 352)
+test tests::bench_compute  ... bench:         231 ns/iter (+/- 10)
+test tests::bench_eval     ... bench:       6,272 ns/iter (+/- 504)
+test tests::bench_parse    ... bench:       1,624 ns/iter (+/- 133)
+test tests::bench_tokenize ... bench:       4,302 ns/iter (+/- 1,462)
 ...
 ```
 
@@ -35,44 +31,43 @@ RSC is MIT licensed. RSC will always remain free to modify and use without attri
 
 # Example
 ```
-PS C:\Users\lukew> rsc
->2+3*4
-14
->2+3(4)
-14
->(3)(4)
-12
->sqrt 4
-2
->sqrt(4)
+PS C:\Users\Luke> rsc
+>2+2
+4
+>a = 2
 2
->sqrt 4 + 2
+>a^3
+8
+>b
+Compute error: UnrecognizedIdentifier("b")
+>(b = a^2) + 3
+7
+>b
 4
->sin(6.5/9.7)
-0.6210667900937665
->sin cos tan 2
--0.5449592372801408
+>sqrt((6.1--2.22)^2 + (-24-10.5)^2)
+35.48904619738322
+>|-3|
+3
+>abs -3
+3
 ```
 ## Debug
 RSC can be run with the `ast` flag and show the internal expression that was created by the parser. This is most commonly used for entertainment purposes 😛.
 ```
-PS C:\Users\lukew> rsc ast
->pi*2^2
-BinOp(
-    Star,
-    Constant(
-        3.141592653589793
-    ),
-    Pow(
-        Constant(
-            2.0
-        ),
+PS C:\Users\Luke> rsc ast
+>(a = 2)^3
+Pow(
+    Assignment(
+        "a",
         Constant(
             2.0
         )
+    ),
+    Constant(
+        3.0
     )
 )
-12.566370614359172
+8
 ```
 ## Errors
 ```
@@ -85,6 +80,10 @@ Lexer error: InvalidNumber("3.3.1")
 Parser error: ExpectedFactor(None)
 >2(3
 Parser error: ExpectedClosingParenthesis
+>2b
+Parser error: UnexpectedNumber(Identifier("b"))
+>b
+Compute error: UnrecognizedIdentifier("b")
 ```
 # Related Projects
-* [rscplot](https://github.com/asmoaesl/rscplot)
+* [rscplot](https://github.com/asmoaesl/rscplot): A graphing calculator dependent on RSC for solving expressions.