I need help with the code if a should put d in trig identites

A vector can be represented by its rectangular coordinates x and y or by its polar coordinates r and . The relationship between them is given by the equations

Assign values for the polar coordinates to variables and . Write the Matlab code that would use these values and assign the corresponding rectangular coordinates to variables x and y

Should i put d when I input the code? For example, x=r*cosd(theta)

Answer 1

[Walter Roberson]

Use sind() and cosd() if the angle has been given to you in degrees.

Use sin() and cos() if the angle has been given to you in radians.

Note: if the angle has been given in radians, then pol2cart() can do the work for you.