Key | Description | Availability |
---|
e |
Euler's constant and the base of natural logarithms,
approximately 2.718.
| |
ln10 | The natural logarithm of 10, approximately 2.302. | |
ln2 | The natural logarithm of 2, approximately 0.693. | |
log10e | The base 10 logarithm of E (approximately 0.434). | |
log2e | The base 2 logarithm of E (approximately 1.442). | |
pi |
The ratio of the circumference of a circle to its
diameter, approximately 3.14159.
| |
sqrt1_2 |
The square root of 1/2; equivalently, 1 over the
square root of 2, approximately 0.707.
| |
sqrt2 | The square root of 2, approximately 1.414. | |