constant_name,symbol,value,description
pi,π,3.14159265358979323846,Ratio of circumference to diameter
e,e,2.71828182845904523536,Euler's number - base of natural logarithm
phi,φ,1.61803398874989484820,Golden ratio
sqrt2,√2,1.41421356237309504880,Square root of 2
sqrt3,√3,1.73205080756887729352,Square root of 3
sqrt5,√5,2.23606797749978969640,Square root of 5
ln2,ln(2),0.69314718055994530942,Natural logarithm of 2
ln10,ln(10),2.30258509299404568402,Natural logarithm of 10
log2e,log₂(e),1.44269504088896340736,Log base 2 of e
log10e,log₁₀(e),0.43429448190325182765,Log base 10 of e
pi_2,π/2,1.57079632679489661923,Half of pi
pi_4,π/4,0.78539816339744830962,Quarter of pi
tau,τ,6.28318530717958647692,Two times pi (full circle in radians)
euler_gamma,γ,0.57721566490153286061,Euler-Mascheroni constant
inf,∞,Infinity,Positive infinity representation