Math library functions These are available when bc is invoked with -l . Library functions set scale to 20. Compute the sine of angle , a constant or expression in radians. Compute the cosine of angle , a constant or expression in radians. Operators These consist of operators and other symbols.
Operators can be arithmetic, unary, assignment, or relational.
Can also be used around assignment statements to force the result to print. 20 Evaluate this octal number . 16 Terminal displays decimal value . 20 Octal input . 10000 Terminal now displays binary value .