Description Usage Arguments Details Value Author(s) References Examples

To initial, plot and show a Sierpinski pedal triangles.

1 | ```
spt(A,B)
``` |

`A,B` |
The degrees of two of the three angles of a triangle. |

When the original triangle is an acute triangle, the area of the
smallest SPT/PT to be drawn is determined by (tol * S), where S is
the total area for plotting. No restriction is applied to
`iter`

.

If the original triangle is an obtuse triangle, the largest value of
`iter`

is 12.

tol: A stopping creiteria to draw the sub-SPT. Default value 0.0001.

The dimension of the SPT will be returned if the original triangle is an acute triangle.

The viewport of showing the SPT/ST "abc" can be changed by changing the value of abc$viewport.

B. Wang bwang@jaguar1.usouthal.edu

Zhang, XM., Hitt, R. Wang, B. and Ding, J. (2008). Sierpinski Pedal Triangle. Fractals. 16(2): 141-150.

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