Unfortunately for Vickers, he introduced a briefly notorious error – the so-called "square-root bug" that caused the square root of 0.25 to be returned erroneously as 1.3591409 – as a result of problems with integrating the ZX Printer code into the ROM.
Desafortunadamente para Vickers, presentouse un erro logo notado, chamado "bug da raíz cadrada", que provocaba que a operación da raíz cadrada de 0,25 devolvía erroneamente o valor 1,3591409, un erro debido a problemas de integración da programación da Impresora ZX Printer directamente na ROM.