udf for paraffin wax density
 

Hello
i need write this equation below for paraffin wax density in c++ ,but i do not know how to write it?
can any one write it to me , please

density = 750/(0.001(T-319.15)+1)

where T is temperature

solid Tem for paraffin = 319
liquid Tem for paraffin = 321

T solid < T < T liquid

Use DEFINE_PROPERTY to define the density, then compile the UDF. If you require more information, Ansys help?