Better than expected

Its unfortunate that the graphing-feature of this nice app fails to work on devices below iOS7(Can something be done about this,maybe a lite-version perhaps?).However it does work in full as described on iOS7 which Ive had a chance to test on.So far no issues encountered;everything seems working fast and smoothly like a charm.The developer is very responsive and helpful.Well-worth paying for.
Suggestions for improvement: 1) A full-screen mode covering the entire screen for iPad devices may be a nice feature-addition. 2) Some useful function additions may be matrix eigen-value,eigen-vector,polynomial-roots,reverse-list,list-go-last-term,list-add-new-value(bottom-data-entry),sub-matrix,sub-list.3) Data-import directly from excel cvs-file.4) Will be really useful to see the maximum list-size setting increased from 999 to say.. a few thousand(i.e.3000).Inspite of the shortcomings,I think the developer has done an excellent job and trully deserves credit for it;hope he continues to further improve the work.

Iphone4s_user1 about GraphNCalc83, v1.4