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## Re: symbolic basic calculus help

**From**: |
Anton Dereventsov |

**Subject**: |
Re: symbolic basic calculus help |

**Date**: |
Thu, 6 Sep 2018 13:45:13 -0500 (CDT) |

Octave does not like doing symbolic arithmetic with non-integer numbers. To
bypass that, use 'vpa' command (type 'help vpa' in octave command window for
more info). Basically, you should define v as follows:
v = (vpa(1/(60^2)) + vpa(0.8)*t) ^ vpa(-0.5);
Note also that I wrote 1/(60^2) and not 1\(60^2) since \ is the left
division so that's probably not what you wanted.
Additionally, if you want to evaluate acceleration a at a point, say, T1 you
should use 'subs' command and not 'eval':
subs(a,T1);
Hope that helps,
Anton
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