Calc
Calc-alkaline magma series
LibreOffice Calc
Calc–silicate rock
3D-Calc
Boeing Calc
HP CalcPad series
Calcareous sinter
Calcflinta
CoCalc
VisiCalc
SuperCalc
AP Calculus
WikiCalc
Sabily
GraphCalc
MedCalc
NuCalc
HP-25
NeoOffice
HP-21
HP-22
Windows Calculator
Hewlett-Packard Voyager series
HP-19C/-29C
Anglo-Saxon runes
SAP SuccessFactors
MicroPro International
StarOffice
HP-67/97
HP-16C
Hornfels
HP-12C
OpenOffice.org
Calculus
Fractional Calculus and Applied Analysis
Apache OpenOffice
ESAIM: Control, Optimisation and Calculus of Variations
HP-15C
Impact calculus
Precalculus
Big Trak
Intuitionistic logic
Microsphere (software company)
TI-BASIC
China Everbright Limited
Calcium 2-aminoethylphosphate
OpenOffice
Annales Henri Poincaré