MATH/CMSC 206 - Introduction to Matlab
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Answers to Self-Test
1. The command would be as follows. Note that as in Matlab (and in much of computer science) log is used to mean natural logarithm.
evalin(symengine,'int(1/x,x=1..7)')
ans = log(7)
2. The command would be
evalin(symengine,'solve(x^4-2*x^2+5=0,x)')
ans =
{(1 - 2*i)^(1/2), (2*i + 1)^(1/2), -(1 - 2*i)^(1/2), -(2*i + 1)^(1/2)}
3. No answer needed.
4. Provided you remember how to open a notebook:
| nb = mupad |
From here we simply define the function and plug things in:
f:=x->x^2-tan(x)
f(2)
f(PI/6)
f(t+1)
f(arcsin(x))
Notice we plugged in some interesting things here like t+1 and especially arcsin(x). You should remember doing simplifications of expressions like tan(arcsin(x)) as part of trigonometric substitutions in Calculus 2.