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Source for wiki NegativeSqrt version 2

author

cowan

comment

ipnr

108.182.78.175

name

NegativeSqrt

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text

This is a test of `(sqrt -1)` to determine various issues: does the value become inexact, and if we don't have complex numbers, do we get an error or a NaN?

Returns exact `+i`:  Racket, MIT, Gambit, Chibi, Chez, Vicare, Ypsilon, Mosh, !IronScheme, STklos, Spark, Owl Lisp

Return inexact `0.0+1.0i`: Gauche, Chicken (with the numbers egg), Scheme48, Guile, Kawa, SISC, SCM, Larceny, KSi, UMB

Returns `+nan.0`: Chicken (without the numbers egg), NexJ, RScheme, BDC, VX, Inlab

Returns `+nan.0+nan.0i`: S7

Signals an error: Bigloo, scsh, Ikarus, Scheme 9, XLisp, Rep, Schemik, Elk, Llava, SXM, Sizzle, Dfsch

`sqrt` is undefined: !SigScheme, Shoe, !TinyScheme, Oaklisp, !FemtoLisp

Dream hangs.

time

2013-05-24 13:04:04