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Thank you mikrom and Geates for your help. I am constantly learning through this forum. pya

Gents, I checked again and rectified the error. Although the conversion from Celsius to Fahrenheit and back is a simple calculation, one of my objectives is to keep learning through coding and invoking new functionality e g CASE SELECT, something which I had never heard of...

Hi Mikrom, After a long time I am trying to code with Subroutines. I get Error: Label Not Defined on Line 145 but not on 95. Why should this be? And what is the error trying to tell me? And how do I get rid of it? Thanx for your help...

Hi Mikrom, I am writing a simple Temperature conversion QBASIC Program for my grandson. Psuedo code looks like this INPUT T$ IF T$ C F K Depending on whether input is C F or K I will use a GOTO to carry out different calculations I am trying to avoid multiple IF statements and would like to...

Thanx Nice to know you are still in the game. Been a year since I last communicated with you. pa99

Writing a simple program which I will tidy up later but I need to resolve this Error. Please help. pa99https://files.engineering.com/getfile.aspx?folder=131b8266-c764-4ae2-bb74-d7d57165949b&file=QBASIC_Error.JPG

Hi Mikrom, Thanx for your help. The Code works, but ChatGPT is not impressed! Can this code be improved V15.3 100 REM 6N +- 1 Test V15.3 110 DIM P1, P2, N1, N2 AS _Unsigned _Integer64 120 INPUT “Number “; N 130 IF N <= 0 THEN GOTO 999 140 N1 = N 150 N2 = N 200 P1 = (6 *...

Hi Mikrom, Thanx for the tip. Code works for small numbers; I will now test for 10+ digit numbers. One more question: Is there a way of combining the 4 DIM statements into 1 line? eg DIM P1, P2, N1, N2 AS LONG Thanx pya

Hi Mikrom, Further to my post if I use PRINT instead of PRINT USING , the code works fine. But, PRINT USING should allow me to display the output number in detail instead of in scientific exp notation. Try the code with N = 3, 4, 5, 6, 59 and 288 to see how it works. Pervez

Hi Mikrom, Your help appreciated please. I keep getting a TYPE MISMATCH Error on Line 14 ( Line No 240) Can you help please. 100 REM 6N +- 1 Test V15.3 110 DIM P1 AS LONG 115 DIM P2 AS LONG 120 DIM N1 AS LONG 125 DIM N2 AS LONG 130 INPUT “Number “; N 140 IF N <= 0 THEN GOTO...

Hi mikrom, One last question: How do I insert spaces between the brackets in the output? ( 2, .....7, 2 ) and ( 23, .... 19, 24 ) At my age I can get confused if the output is like (2, ....7, 2) and (23, .....19,24) I modified a few lines but got no change. Regards...

Hi mikrom, I ran your code for 10 cities and it worked fine. But, I have a couple of questions and would be grateful if you could answer at your convenience. 1. I do not understand the first set of Distance Matrix - DATA 0,34,36 and the following 2 lines. 2. My 2nd question is where is the...

Hi mikrom, Mea Culpa! I took your advice and your untouched (untouched by human hands?) version worked! I must have screwed up during line numbering. Thanx for all your help. Pervez

Hi mikrom, Attached is the compilelog which I forgot to attach before. Pervezhttps://files.engineering.com/getfile.aspx?folder=348400e3-87d5-4daf-8ffc-724b6913af15&file=compilelog.txt

Hi mikrom, When you have time can you please look at the ERROR I get when running your code. Also, I do not understand Lines 2320 - 2360. The Distance Matrix lines 2370 - 2384 I recognise as the distance between cities 1 to 7. But what do lines 2320 - 2360 represent? Regards Pervez PS: No...

Hi Mikrom, Just thrilled to receive your response. Will try it out later. If it works I will give you another star. If it does not I will take back the first star :) Thanx Pervez

Hi Mikrom, I think I did not make myself clear. I am trying to find the shortest route from any city (example 4) back to 4, while going through ALL cities exactly once. Travelling Salesman Problem – Qbasic 5 'Travelling Salesman Problem 10 'number of cities 20 N = 10 30 Dim...

Has anyone written a code in QBasic to solve the Travelling Salesman Problem? I can solve it in Excel Solver but would be interested in the code. Pervezhttps://files.engineering.com/getfile.aspx?folder=855c4bc6-288a-40e1-b531-4633fbe519ff&file=TSP_-_SOLVER_v1.xlsx

Hi mikrom, A kindred spirit. Studied maths at uni but never enjoyed it. Too many exams and too much pressure. Now I enjoy it thoroughly (along with Physics). My main interests are in Prime Numbers and Cantor's Infinite Set theory. I also enjoy Linear Programming and use Excel's Solver to keep...

Thanx Great help.