Get started: Sample mathematics

There are many built-in mathematical functions for real and complex numbers, e.g.,
Type   SetImaginaryNumber( i )    to define    i    as   sqrt(-1).
Type   Help MathFunctions   for a list of mathematical functions.
```  someComplexNumber = sin(pi/4) + exp(3) + cosh(2) + abs(-3) + sqrt( ImaginaryNumber() )
```

Use the  Expand  command to eliminate parentheses, e.g.,

```  p = Expand( (1+t)*(2+t^2)*(3+t^3) )
```
The response to this input is equal to
```  p = 6 + 6*t + 3*t^2 + 5*t^3 + 2*t^4 + t^5 + t^6
```
To evaluate   p   for  t = 2.3,  issue the command
```  p23 = Evaluate( p,  t = 2.3 )
```
To find the ordinary time-derivative of   p,   enter
```  derivative = Dt( p )
```
The 5 roots of the 5th-order polynomial in  DpDt  for   t   are calculated with
```  roots = GetPolynomialRoots( DpDt, t, 5 )
```

To save input (for subsequent re-use) and/or input and output responses, type
Save   MathSampleCommands.txt
Save   MathSampleCommands.html

Exit the program by typing  Quit.

 Try additional miscellaneous mathematical commands Input commands MiscMathExamples.txt Output responses MiscMathExamples.html