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Deploy and upgrade DolphinDB on premise or in the cloud
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Design and configure DolphinDB databases
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Publish, subscribe to, and process streaming data
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Import and migrate data from various data sources to DolphinDB databases
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Database maintenance and system management
Programming Guide
DolphinDB scripting language and SQL reference
Function References
Reference for all built-in functions
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API in different languages for users to call DolphinDB from their programs
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Release notes and compatibility changes for DolphinDB server, plugins and APIs

abs

Syntax

abs(X)

X is a scalar/pair/vector/matrix.

Return the element-by-element absolute value(s) of X.

abs(-2.0);
// output
2

abs(-2 -3 4);
// output
[2, 3, 4]