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Student Support Forum: 'help:plot of functions and inequalities' topicStudent Support Forum > General > "help:plot of functions and inequalities"

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filo
04/17/01 7:20pm

Hi, i'm a very beginner to mathematica, and i know practically nothing of it, so sorry if these are stupid questions.
1) how can i plot a function like f[x]:= (x^2 + r^2)/2rx , where x is the unknown, and r is a constant on which i can do some assumptions like r>0 ^ r<10, or simply r>0 ?
2) what are the basic commands to solve inequalities? (for example (x^2 + 3)/x^3 - 20 > 0 : what's the command to find the intervals of x values where inequality is true?).

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Author Date Posted
help:plot of functions and inequalities filo 04/17/01 7:20pm
Re: help:plot of functions and inequalities Henry Lamb 04/18/01 3:27pm
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