<commit_before># What is it?

This is a small command line programm which calculates a derivative of given mathematical expression. 
Project is created solely to train C++ skills and pursues only academic purposes.
This should explain why I have to develope a wheal, instead of using a large variety of existing tools.

# How to use it?
First of all, you need to [buid it](#build) before you can use it.

The usage is simple

solver <expression> <variable>

Couple of examples:
```
$ solver "2*x + x^2" x
$ 2 + 2*x
```

```
$ solver "a + b" x
$ 0
```

```
$ solver sin(x^2) x
$ cos(x^2)*2x
```

# Building <a name="build"></a>

The build procedure is standard :
make clean all test

# Developing 
The information regarding the design of application is available in [design notes](docs/notes.md).
<commit_msg>Updated documentation (typo in README)<commit_after># What is it?

This is a small command line programm which calculates a derivative of given mathematical expression. 
Project is created solely to train C++ skills and pursues only academic purposes.
This should explain why I have to develope a wheal, instead of using a large variety of existing tools.

# How to use it?
First of all, you need to [buid it](#build) before you can use it.

The usage is simple

solver <expression> <variable>

Couple of examples:
```
$ solver "2*x + x^2" x
$ 2 + 2*x
```

```
$ solver "a + b" x
$ 0
```

```
$ solver sin(x^2) x
$ cos(x^2)*2x
```

# Building <a name="build"></a>

The build procedure is standard :
make clean all test

# Developing 
The information regarding the design of application is available in [design notes](design/docs/notes.md).

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