Decimal to binary in HP Prime - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Decimal to binary in HP Prime (/thread-12811.html) Decimal to binary in HP Prime - jrozsas - 04-16-2019 05:02 PM How to perform the conversion of a number such as 3.2672 decimal to binary in Hp Prime? RE: Decimal to binary in HP Prime - KeithB - 04-16-2019 07:16 PM R->B() will convert an integer to binary - if your base is set to 2. I don't know that it can convert floating point. RE: Decimal to binary in HP Prime - Albert Chan - 04-16-2019 10:27 PM I try this in XCas: bits(x) := convert(convert(trunc(x),base,2),base,10) x = exact(3.2672) -> 2042/625 bits(x * 2^22) -> 110100010001100111001110 3.2672 ~ 0b11.0100010001100111001110 (24 bits) For *exact* conversion, we need to get number of repeated bits: order(a,n) := {local k=0, t=1 mod n; repeat t*=a; k++ until t=1; k} Since denominator is odd, we can get repeated bits = order(2,625) = 500 bits(x * 2^500), we got: x = 0b11.( 01000100011001110011100000011101011111011011111101 00100001111111110010111001001000111010001010011100 01110111100110100110101101010000101100001111001001 11101110110010111111101100010101101101010111001111 10101010110011011001111010000011111001000010010110 10111011100110001100011111100010100000100100000010 11011110000000001101000110110111000101110101100011 10001000011001011001010010101111010011110000110110 00010001001101000000010011101010010010101000110000 01010101001100100110000101111100000110111101101001)