Uncle Clive's calculator hack

[Churchill]

One of Mr Wozniak's best...

SWEET16 - Wikipedia, the free encyclopedia

[doodab]

That is classic British engineering. Amazing what really clever people can come up with given very limited resources.

[vetran]

He should have done it in .Net

yep

Due to the simple loop-based algorithms, the speed of the Sinclair Scientific calculator varies from good to horribly slow depending on the values. For instance, sin .1 takes under a second, but sin 1 takes about 7.5 seconds. Arccos .2 takes about 15 seconds. Log and antilog have the overhead of recomputing the constant 229.15, and take about 1 to 2 seconds. In comparison, the HP-35 was designed with a one second deadline for computations.

[mudskipper]

Reversing Sinclair's amazing 1974 calculator hack - half the ROM of the HP-35

Gosh.

You had to be really clever in those dim & distant days.

He should have done it in .Net

[zeitghost]

http://files.righto.com/calculator/s...simulator.html

Gosh.

You had to be really clever in those dim & distant days.