The latest release of ECAS can be tested here. It accepts the following input in terms of regular expressions:
| Input | Meaning |
|---|---|
| + | Addition |
| - | Subtraction |
| * | Multiplication |
| / | Division (Not fully implemented) |
| ^ | Power |
| [A-Za-z] | A single character from A-Z or a-z designating a variable; case-sensitive |
| [0-9]+ | One or more digits up to an arbitrary length |
| Commands | |
| NoEvaluate[input] | Partially supresses evaluation of input. |
| Expand[input] | Expands input. |
| IsSimilar[input1,input2] | Tests for similarity between input1 and input2. This is not a strict mathematical function, it is internally used by ecas. |
| IsZero[input] | Indicates whether or not the input evaluates to 0 ('zero'). |
| IsOne[input] | Indicates whether or not the input evaluates to 1 ('one'). |
For instance: Expand[(2*b+10234*a)^2]
![[Valid XHTML 1.0]](/images/w3c/valid-xhtml10-blue.png)
![[Valid CSS]](/images/w3c/valid-css2-blue.png)