Double - Float casting or Why isn't there float sqrt?

Is there any reason why not to include float sqrt? I'm pretty pissed since, it is just... well plain stupid. I hope it can be added, not to mention that casting takes away performance, not much, but I have to do a lot of casting since I'm doing 3d grahpics... Anyone know any solluions? Is there any point going the hard way and implementing own sqrt for float?
WHY WHY WHY, OH WHY.
Something is rotten in the state of java.

The absence of Math.sqrt(float) and float versions of other relevant methods is apparently becuase early versions of the Java compiler could not distinguish overloaded methods which only differed in double/float parameters. The current compilers do not have this problem and it has been proposed that the extra methods should be added but I don't know when this might happen.
In any case how sure are you that casting between double and float is causing any significant performance problem? This cast is NOT particularly expensive (casting to 'int' from float or double is usually much more expensive).
What processor are you using --- as far as I know Intel processors do not give any speed benefit from doing sqrt on float instead of double. I believe that many RISC processors do benefit from using float where possible.

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