# Partial Derivatives

Let F be a function of several variables, say x, y, and z. In symbols,

The partial derivative of F with respect to x is denoted by

and can be found by differentiating f(x, y, z) in terms of x and treating the variables y and z as constants.

# Problem 06 | Elimination of Arbitrary Constants

**Problem 6**

Eliminate the c_{1} and c_{2} from x = c_{1} cos ωt + c_{2} sin ωt. ω being a parameter not to be eliminated.

# Problem 05 | Elimination of Arbitrary Constants

**Problem 5**

Eliminate A and B from x = A sin (ωt + B). ω being a parameter not to be eliminated.

# Polar Coordinate Printable Paper (Free Download)

This is just a quick post and I hope you find this useful.

One time, I browse for something at the Morayta branch of National Book Store and I heard a group of students asking to the sales lady if they have a polar graph paper. From the look of her face, the sales lady seemed know nothing about a polar paper and she courteously told the students that they don't have what they are looking.