Log - exp - power

• exp — element-wise exponential
• expm — square matrix exponential
• log — natural logarithm
• log10 — base 10 logarithm
• log1p — computes with accuracy the natural logarithm of its argument added by one
• log2 — base 2 logarithm
• logm — square matrix logarithm
• polar — polar form
• sqrt — square root
• sqrtm — matrix square root