HP-50g plots of cube roots (no negative domain displayed)
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03-19-2018, 04:35 PM
Post: #1
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HP-50g plots of cube roots (no negative domain displayed)
If I plot y1(x)=x^(1/3), I get no negatives. I did a bit of searching and turned up :
http://www.hpmuseum.org/cgi-sys/cgiwrap/...ead=141921 The solution there was kind of awkward as if you want to plot say : y1(x)=x^(5/3) you have to plot : y1(x) = (cube root(x))^5 as both y1(x)=x^(5/3) and y1(x) = cube root(x^5) Fail to show the negative domain as the calculator is generating the complex roots when x < 0. I switched from exact to approx, and turned off complex (under modes/cas) but this does not help. Is there a way to force the calculator to return the real root or are you forced to play with the equation entry which is kind of awkward? |
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Messages In This Thread |
HP-50g plots of cube roots (no negative domain displayed) - Cliff Stamp - 03-19-2018 04:35 PM
RE: HP-50g plots of cube roots (no negative domain displayed) - Dieter - 03-21-2018, 07:16 PM
RE: HP-50g plots of cube roots (no negative domain displayed) - Cliff Stamp - 03-22-2018, 01:58 PM
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