UnitMathHelper.frink

View or download UnitMathHelper.frink in plain text format


/** This program demonstrates how to write a transformer that turns Frink
    expressions into something that you can cut-and-paste into Java code.

    Instead of UnitMath, you may change this to something like BigInteger or
    BigDecimal.

    At the moment, this doesn't turn Frink's square brackets into Java's
    parentheses, though.
*/


symbolicMode[true]

transformations UnitMath
{
   _a _b <-> UnitMath.multiply[_a, _b]
   
   _a + _b <-> UnitMath.add[_a, _b]
}

/*equations = parseToExpression["""
      [a = n1.a n2.a + n2.b n1.c,          // a
       b = n2.a n1.b + n2.b n1.d,          // b
       c = n1.a n2.c + n1.c n2.d,          // c
       d = n1.b n2.c + n1.d n2.d,          // d
       e = n1.a n2.e + n1.c n2.f + n1.e,   // e
       f = n1.b n2.e + n1.d n2.f + n1.f]   // f
"""]*/


equations = parseToExpression["""
      [xp = a x + c y + e,
       yp = b x + d y + f]
"""]

println[join[";\n",transformExpression[equations]]]


View or download UnitMathHelper.frink in plain text format


This is a program written in the programming language Frink.
For more information, view the Frink Documentation or see More Sample Frink Programs.

Alan Eliasen was born 17649 days, 5 hours, 45 minutes ago.