I mean, depending on your calculations and scale, you might go a little more precise with it. At a diameter of, say, 10m for a semicircular bridge arc, that’s a difference of 0.7m.
(For mathematicians, the difference will be 0.00796m and then some I can’t be arsed to write out, but compared to the total arc of 15.7m, that’d be a deviation of 0.05% which is basically zero anyway)
To a mathematician, pi is 3.1415926535897932384626433832795028841971693993
To an engineer, pi is 3
The joke is basically the same, since you get resistors in certain values, and it’s necessary to select the value closest to the one you need
I mean, depending on your calculations and scale, you might go a little more precise with it. At a diameter of, say, 10m for a semicircular bridge arc, that’s a difference of 0.7m.
(For mathematicians, the difference will be 0.00796m and then some I can’t be arsed to write out, but compared to the total arc of 15.7m, that’d be a deviation of 0.05% which is basically zero anyway)
No, to an engineer pi is 22/7, 355/113 if your tolerances are really tight. 3 is pi to a theologist, because that’s what the Bible uses.
Maybe round it up to 4 just to be safe…