Functions in Calcumber

Trigonometry

Functions defined: sin, cos, tan, asin, acos, atan sinh, cosh, tanh, asinh, acosh, atanh.

Usage as below:

sin(30°) 0.5
sin(30 deg) 0.5
sin(pi/6) 0.5
   
asin(0.5) 0.52359878
asin(0.5) in ° 30 °
asin(0.5) in deg 30 deg

Exponential Functions and Logarithms

exp(1) 2.7182818
ln(e) 1
exp10(3) 1000
log10(1000) 3
sqrt(25 m2) 5 m

Numerical Functions

abs(-5) 5
abs(-5 m/s) 5 m/s
sign(-7) -1
   
Rounding is applied after conversion to base units:  
ceil(1 km / 3) 334 m
floor(1 km / 3) 333 m
round(1 km / 3) 333 m
   
Use second argument to specify discretisation:  
E = 78 W * 1 year in kWh 683.748 kWh
round(E, 0.1 kWh) 683.7 kWh
floor(E, 0.1 kWh) 683.7 kWh
ceil(E, 0.1 kWh) 683.8 kWh

Combinatorics

fac(4)     # 4! = 1*2*3*4 24
nCr(5,2)   # fac(5) / ( fac(2) * fac(5-2) ) 10
nPr(5,2)   # fac(5) / fac(5-2) 20