![Sinclair Cambridge electronic calculator showing illuminated numerals at all segment '8' Stock Photo - Alamy Sinclair Cambridge electronic calculator showing illuminated numerals at all segment '8' Stock Photo - Alamy](https://c8.alamy.com/comp/HFJMFW/sinclair-cambridge-electronic-calculator-showing-illuminated-numerals-HFJMFW.jpg)
Sinclair Cambridge electronic calculator showing illuminated numerals at all segment '8' Stock Photo - Alamy
![IGCSE Centre [official] » What kind of calculator is acceptable for use in Cambridge IGCSE Mathematics examinations? IGCSE Centre [official] » What kind of calculator is acceptable for use in Cambridge IGCSE Mathematics examinations?](https://www.igcsecentre.com/wp-content/uploads/2021/02/Calculator.png)
IGCSE Centre [official] » What kind of calculator is acceptable for use in Cambridge IGCSE Mathematics examinations?
![Sinclair Cambridge Programmable Calculator (around 1975) | Pocket calculators, Calculator, Old computers Sinclair Cambridge Programmable Calculator (around 1975) | Pocket calculators, Calculator, Old computers](https://i.pinimg.com/originals/4e/e5/5d/4ee55d3e943dbba635968c417b9bd8fa.jpg)
Sinclair Cambridge Programmable Calculator (around 1975) | Pocket calculators, Calculator, Old computers
![Is this calculator allowed for 0580? And if yes, is there any official proof of it? My school won't let me use for some odd reason, and I can genuinely do nothing Is this calculator allowed for 0580? And if yes, is there any official proof of it? My school won't let me use for some odd reason, and I can genuinely do nothing](https://i.redd.it/uo0fvnu3o5m81.jpg)