The TI-34 is a fairly basic scientific #calculator.
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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)=.34Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat
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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)=.34Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat
@futurebird On a graphing calculator that would have a myriad of functions no doubt.
On a scientific calculator... Really makes you wonder if it was just an oversight or something, lol. I suppose through judicious use of parenthesis and repetition you could build something with that.
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@futurebird On a graphing calculator that would have a myriad of functions no doubt.
On a scientific calculator... Really makes you wonder if it was just an oversight or something, lol. I suppose through judicious use of parenthesis and repetition you could build something with that.
My fuzzy brain vaguely remembers fpart() being handy for "clock arithmentic", converting decimal hours into minutes, for instance. And similarly for converting decimal feet into inches and decimal inches into fractions.
But it seems like there was a more useful trick involving "slide rule math", something to do with fractional exponents, but I can't remember the specifics. Ring any bells?
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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)=.34Great! So, uh.. What are these typically used for? Why include them on such a *basic* calculator? #calculators #ticalc #ti34 #matheducation #mathchat
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F myrmepropagandist shared this topic
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My fuzzy brain vaguely remembers fpart() being handy for "clock arithmentic", converting decimal hours into minutes, for instance. And similarly for converting decimal feet into inches and decimal inches into fractions.
But it seems like there was a more useful trick involving "slide rule math", something to do with fractional exponents, but I can't remember the specifics. Ring any bells?
@jakebrake @futurebird To some extent I could see such things, but remember, this is a scientific calculator. That means everything you punch in you're doing by hand. Really, at that point it's easier just to type in the decimal part in parenthesis where needed.
Actually, I'm just not sure how you could use that well on a scientific calculator. It only truly makes sense when working with variables.
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@jakebrake @futurebird To some extent I could see such things, but remember, this is a scientific calculator. That means everything you punch in you're doing by hand. Really, at that point it's easier just to type in the decimal part in parenthesis where needed.
Actually, I'm just not sure how you could use that well on a scientific calculator. It only truly makes sense when working with variables.
It does have a little “operations” button where you can define a function with one variable.
Maybe it could be used with that?
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@futurebird What does the TI-BASIC version of `int` return? Perhaps they're trying to match the expected result?
I’m showing what TI basic would return.
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I’m showing what TI basic would return.
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@futurebird “learning math it’s important because it’s the same everywhere you go!” - my lying ass math teacher in grade school
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@futurebird Uh, sorry I'm dumber than usual today. Perhaps I should wait for the rest of the post to load before commenting
nah it’s not you this is a little confusing— and I wonder if it should be considering these are educational devices.
I do think part of the problem is “int” is a type in python— but it’s just an operation on the calculator.
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@futurebird “learning math it’s important because it’s the same everywhere you go!” - my lying ass math teacher in grade school
You see this is why I don’t like this even if I can explain why it happens.
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@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".
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@futurebird they are doing what would generally be expected in their domains. a person using the calculator is unlikely to think of a float as an integer and fractional part, while a programmer is quite likely to think like that
@risc Ok but that calculator also runs python which means you can get both results on the same device you hand to children.
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@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?
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@adardis @futurebird Are you a programmer or a mathematician?
