Paul Blacknell 788f79c1bb Validate XIRR inputs and return correct error values ...

Fix: Return #NUM! if values and dates contain a different number of values
Fix: Return #NUM! if there is not at least one positive cash flow and one negative cash flow
Fix: Return #NUM! if any number in dates precedes the starting date
Fix: Return #NUM! if a result that works cannot be found after max iteration tries
Fix: Correct DocBlocks for XIRR & XNPV
Add: Validate XIRR with unit tests

Closes #1177

2019-11-17 21:17:12 +01:00

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ACCRINT.php

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ACCRINTM.php

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AMORDEGRC.php

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AMORLINC.php

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COUPDAYBS.php

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COUPDAYS.php

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COUPDAYSNC.php

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COUPNCD.php

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COUPNUM.php

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COUPPCD.php

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CUMIPMT.php

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CUMPRINC.php

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DB.php

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DDB.php

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DISC.php

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DOLLARDE.php

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DOLLARFR.php

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EFFECT.php

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FV.php

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FVSCHEDULE.php

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INTRATE.php

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IPMT.php

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IRR.php

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ISPMT.php

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MIRR.php

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NOMINAL.php

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NPER.php

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NPV.php

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PDURATION.php

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PRICE.php

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PRICEDISC.php

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PV.php

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RATE.php

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RRI.php

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SLN.php

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SYD.php

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XIRR.php

Validate XIRR inputs and return correct error values

2019-11-17 21:17:12 +01:00