module std.math

Spiral provides the basic numeric functions. All float operations work with full 64-bit precision.

• Utility functions
  • (neg a) returns negated number a (useful, because Spiral has no syntax for negative literals).
  • (square a) returns a multiplied with itself.
• Rounding to nearest integer
  • (floor a) and (ceil a) round the number a to the nearest integer in the appropriate direction. However, doubles will not be converted into integers.
  • (floor-int a) and (ceiling-int a), on the other hand, always return an integer.
• Numberic functions
  • (abs a) returns the absolute value.
  • (exp a) computes the exponential.
  • (log a) computes the natural logarithm.
  • (sin a), (cos a) and (tan a) are the trigonometric functions.
  • (acos a), (acos a), (atan a) and (atan-2 a b) are the standard inverse trigonometric functions.