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ZX EDUCATIONAL<br />
A suite of programs which can be used<br />
for any Sinclair computer, devised by<br />
lan Howland and Damian Clay of Avon.<br />
These programs are a suite,<br />
either to be put individually into a<br />
IK ZX81, or to be put in<br />
together with the menu in a 1 6K<br />
ZX81 or Spectrum. Each program,<br />
with your measurements<br />
will work out the area of the<br />
following shapes:<br />
1 SQUARE/RECTANGLE<br />
2 TRIANGLE<br />
3 CIRCLE<br />
4 SEMICIRCLE<br />
5 RING<br />
Each program follows the same<br />
pattern. First the screen clears<br />
and then asks for the first<br />
measurement, it then displays<br />
the measurement given and the<br />
programs:- SQUARE/RECT-<br />
ANGLE, TRIANGLE and RING<br />
ask for a second measurement.<br />
Once all the measurements<br />
have been entered and verified,<br />
the screen is cleared and the formulae<br />
displayed. The computer<br />
then works out the answer and<br />
displays it. If you use the menu<br />
and ail of the programs, then<br />
change each set of lines which<br />
say:-<br />
PRINT AT 1 5,5:"HIT A KEY TO<br />
CONTINUE"<br />
PAUSE 4E4<br />
GOTO (1 000)(2000)(3000)<br />
(4000X5000) (depending on<br />
which routine it is in)<br />
Alter these lines to:<br />
"PRESS C TO CARRY ON OR M<br />
FOR MENU"<br />
G$ = INKEY$<br />
IF G$ = "M" THEN RETURN<br />
IF G$ = "C" THEN GOTO<br />
(1000)(2000H3000){4000)<br />
(5000) (as appropriate)<br />
GOTO (3 lines back)<br />
24 ZX COMPUTING APRIL/MAY 1985
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