@futurebird just piling on here: I would have defined it as your Python does (the integer part).

I just asked Common Lisp what it does (my current learn-a-computer-language hobby) and it doesn't pre-define an integer function. The manual says "The ceiling, floor, round and truncate functions convert floating point or rational numbers to integers".

@adardis @futurebird Are you a programmer or a mathematician?

The TI-34 is a fairly basic scientific #calculator. I’m a big fan because it’s easy to use and not overwhelming.

I was reading the manual and discovered it has two functions:

ipart(x)
fpart(x)

These return the integer and fraction parts of x.

ipart(2.34)=2
fpart(2.34)=.34

Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat

I tend to imagine that every feature included on a calculator like the TI-34 had to fight to be there.

It's a very stripped down calculator and, as an educator I can tell exactly why everything else is there. From little things, like how it won't reduce square roots (this would make teaching the conceptual part of that skill very annoying) to the inclusion of doing stdev for only 35 numbers.

But the ipart() and fpart() have me stumped!

I must go deeper!

I'm starting to wonder if it's there because of one textbook in some country or region I don't know about... or maybe it's just something that people who design calculators think is useful that baffles everyone else?

I tend to imagine that every feature included on a calculator like the TI-34 had to fight to be there.

It's a very stripped down calculator and, as an educator I can tell exactly why everything else is there. From little things, like how it won't reduce square roots (this would make teaching the conceptual part of that skill very annoying) to the inclusion of doing stdev for only 35 numbers.

But the ipart() and fpart() have me stumped!

I must go deeper!

@futurebird Engineers do ipart() and fpart() all the time when we need to truncate (not round) floating point values.

Doing ipart() and fpart() works on lists and arrays and imaginary numbers too - cool!

@futurebird Engineers do ipart() and fpart() all the time when we need to truncate (not round) floating point values.

Doing ipart() and fpart() works on lists and arrays and imaginary numbers too - cool!

The TI-34 is a fairly basic scientific #calculator. I’m a big fan because it’s easy to use and not overwhelming.

I was reading the manual and discovered it has two functions:

ipart(x)
fpart(x)

These return the integer and fraction parts of x.

ipart(2.34)=2
fpart(2.34)=.34

Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat

@futurebird I'm going to pull a guess straight out of thin air, but I think they might be intended for US Imperial Units use: where there's e.g. feet + inches, or pounds + ounces, etc: you can then perform additional arithmetic on the units "independently" when you can extract integer & fraction

@futurebird I'm going to pull a guess straight out of thin air, but I think they might be intended for US Imperial Units use: where there's e.g. feet + inches, or pounds + ounces, etc: you can then perform additional arithmetic on the units "independently" when you can extract integer & fraction

@eigen@mattstodon.panar.ooo @futurebird@sauropods.win by the way it's not "US Imperial", Imperial units are a different set of units from US Customary

@su_liam @adardis

**has existential crisis**

@futurebird What existential crisis? Just answer “yes.”
@su_liam @adardis