Floating point
- ceil — round up
- clean — cleans matrices (round to zero small entries)
- double — converts inttype integers or booleans into decimal encoding
- fix — round towards zero
- floor — round down
- format — set the default output format of decimal numbers
- ieee — sets or gets the floating point exception mode
- int — round towards zero
- isinf — tests for infinite elements
- isnan — check for "Not a Number" entries
- nearfloat — get previous or next floating-point number
- nextpow2 — next higher power of 2.
- number_properties — determine floating-point parameters
- round — round to nearest integer
- signed zero -0 — Processing of -0 versus 0
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