# Question: you have use rstudio for this 43215321 introduction to...

###### Question details

You have use R-studio for this.

4321/5321 - Introduction to Symbolic Computation

1 Assessments guide

1. Turn in homeworks for grading on or before the \ Due Date " on
D2L.

2. Assignments Etiquette:

(a) Create a script file for every homework. Every homework should
have the le

name starting with your last name, your 1st initial and then
assignment number

i.e. HW#. For example:

autumP-HW1.R

(b) Every script file in the beginning should have the
following:

# HW (The correct number)

# (Your name here)

(c) Make sure you have numbered the questions correctly using the #
symbol.

(d) There should be some space between any two questions.

(e) Label/name your homework appropriately and give detailed
headings,

comments descriptions etc to your solutions.

Math 4321/5321 - Introduction to Symbolic Computation

Questions

1. What is the command to check your current working
directory?

2. Setup your working directory to a new 'Math4321HW' folder in
your desktop and check

your current working directory.

3. Use the help feature to write 4-5 lines about Trigonometric
functions. Hint: Use the

word Trig.

4. Simple Math Calculations. Find

(a) square root of 625

(b) pi

(c) Sine of pi divided by 6. Your answer should be 0.5

(d) cos(pi/2)

(e) cospi(1/2)

(f) What do you notice about the commands: cos(pi/2) and
cospi(1/2).

(g) tangent of angle 90. Your answer should be NaN. As we know that
Tangent of 90

are undened.

(h) log10(1000). Your answer should be 3.

5. Check if there is a package: devtools. If not, then install the
package.

6. Write the command to Load the devtools package.