RKalk
intuitive. powerful. touchable.
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Tutorials
Function Reference
Basic Calculations
Key in equations and get their outputs.
Calculation History
Streamline the way you calculate
Graphing
Graph lines and edit their equations
Tracing
Follow data points along any line
Saving Graphs
Save a graph as an image in the Photos app
Get Started.
We'll help you learn the basics of RK-83 with a few short films that didn't make it into Sundance.