R: Basic Mathematical Functions

R can perform the usual mathematical operations, below are the functions:

Arithmetic

• +    - addition
• -    - subtraction
• *    - multiplication
• /    - division

Trigonometry

• sin      - sine
• cos      - cosine
• tan      - tangent
• asin    - sine inverse
• acos    - cosine inverse
• atan    - tangent inverse

Linear Algebra

• +            - element-wise addition
• -            - element-wise subtraction
• *            - element-wise multiplication
• /            - element-wise division
• %*%        - matrix multiplication
• t            - transpose
• eigen    - eigenvalues and eigenvectors
• solve    - inverse of matrix
• ginv      - generalized inverse, requires MASS package
• rbind    - combines vectors of observations horizontally into matrix class
• cbind    - combines vectors of observations vertically into matrix class

Reference:

1. Kabacoff, R. I. Matrix Algebra. Quick-R. Retrieved April 20, 2013 here.
2. Trigonometric Functions. R Documentation. R.2.15.1