Mathematics category

Statistics calculators

Data summaries, uncertainty, measurement and practical quantitative models.

1288 calculators in this category. Page 19 of 27.

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Statistics

Food Water Activity

Calculate water activity from food equilibrium vapor pressure and pure-water vapor pressure at same temperature.

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Statistics

Food Water Activity: solve food equilibrium vapor pressure

Rearrange the food water activity relationship and solve for food equilibrium vapor pressure.

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Food Water Activity: solve pure-water vapor pressure at same temperature

Rearrange the food water activity relationship and solve for pure-water vapor pressure at same temperature.

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Statistics

Food Ingredient Inclusion Rate

Calculate ingredient inclusion percentage from selected ingredient mass and total finished batch mass.

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Food Ingredient Inclusion Rate: solve selected ingredient mass

Rearrange the food ingredient inclusion rate relationship and solve for selected ingredient mass.

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Food Ingredient Inclusion Rate: solve total finished batch mass

Rearrange the food ingredient inclusion rate relationship and solve for total finished batch mass.

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Cooking Mass Retention

Calculate cooking mass-retention percentage from cooked product mass and raw product mass.

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Cooking Mass Retention: solve cooked product mass

Rearrange the cooking mass retention relationship and solve for cooked product mass.

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Cooking Mass Retention: solve raw product mass

Rearrange the cooking mass retention relationship and solve for raw product mass.

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Food Concentration Factor

Calculate concentration factor from final marker concentration and initial marker concentration.

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Food Concentration Factor: solve final marker concentration

Rearrange the food concentration factor relationship and solve for final marker concentration.

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Food Concentration Factor: solve initial marker concentration

Rearrange the food concentration factor relationship and solve for initial marker concentration.

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Statistics

Photovoltaic Array Nameplate Power Density

Calculate nameplate power per area from array nameplate power and occupied module aperture area.

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Photovoltaic Array Nameplate Power Density: solve array nameplate power

Rearrange the photovoltaic array nameplate power density relationship and solve for array nameplate power.

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Photovoltaic Array Nameplate Power Density: solve occupied module aperture area

Rearrange the photovoltaic array nameplate power density relationship and solve for occupied module aperture area.

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Statistics

Solar-Energy Specific Yield

Calculate energy per installed power from generated electrical energy and installed photovoltaic nameplate power.

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Solar-Energy Specific Yield: solve generated electrical energy

Rearrange the solar-energy specific yield relationship and solve for generated electrical energy.

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Solar-Energy Specific Yield: solve installed photovoltaic nameplate power

Rearrange the solar-energy specific yield relationship and solve for installed photovoltaic nameplate power.

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Solar Photovoltaic Performance Ratio

Calculate performance ratio percentage from measured final system yield and reference irradiance yield.

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Solar Photovoltaic Performance Ratio: solve measured final system yield

Rearrange the solar photovoltaic performance ratio relationship and solve for measured final system yield.

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Solar Photovoltaic Performance Ratio: solve reference irradiance yield

Rearrange the solar photovoltaic performance ratio relationship and solve for reference irradiance yield.

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Statistics

Solar Inverter Loading Ratio

Calculate dc-to-ac loading ratio from photovoltaic dc nameplate capacity and inverter ac nameplate capacity.

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Solar Inverter Loading Ratio: solve photovoltaic DC nameplate capacity

Rearrange the solar inverter loading ratio relationship and solve for photovoltaic dc nameplate capacity.

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Solar Inverter Loading Ratio: solve inverter AC nameplate capacity

Rearrange the solar inverter loading ratio relationship and solve for inverter ac nameplate capacity.

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Statistics

Wind-Turbine Tip-Speed Ratio

Calculate tip-speed ratio from rotor blade-tip linear speed and undisturbed wind speed.

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Wind-Turbine Tip-Speed Ratio: solve rotor blade-tip linear speed

Rearrange the wind-turbine tip-speed ratio relationship and solve for rotor blade-tip linear speed.

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Wind-Turbine Tip-Speed Ratio: solve undisturbed wind speed

Rearrange the wind-turbine tip-speed ratio relationship and solve for undisturbed wind speed.

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Wind-Turbine Capacity Factor

Calculate capacity factor percentage from actual electrical energy generated and nameplate energy over same period.

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Wind-Turbine Capacity Factor: solve actual electrical energy generated

Rearrange the wind-turbine capacity factor relationship and solve for actual electrical energy generated.

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Wind-Turbine Capacity Factor: solve nameplate energy over same period

Rearrange the wind-turbine capacity factor relationship and solve for nameplate energy over same period.

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Statistics

Battery Charge or Discharge C-Rate

Calculate battery c-rate from charge or discharge current and rated ampere-hour capacity.

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Battery Charge or Discharge C-Rate: solve charge or discharge current

Rearrange the battery charge or discharge c-rate relationship and solve for charge or discharge current.

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Battery Charge or Discharge C-Rate: solve rated ampere-hour capacity

Rearrange the battery charge or discharge c-rate relationship and solve for rated ampere-hour capacity.

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Battery Depth of Discharge

Calculate depth of discharge percentage from charge or energy withdrawn and full rated charge or energy.

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Battery Depth of Discharge: solve charge or energy withdrawn

Rearrange the battery depth of discharge relationship and solve for charge or energy withdrawn.

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Battery Depth of Discharge: solve full rated charge or energy

Rearrange the battery depth of discharge relationship and solve for full rated charge or energy.

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Battery State of Charge

Calculate state of charge percentage from estimated remaining charge or energy and matched full-capacity estimate.

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Battery State of Charge: solve estimated remaining charge or energy

Rearrange the battery state of charge relationship and solve for estimated remaining charge or energy.

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Battery State of Charge: solve matched full-capacity estimate

Rearrange the battery state of charge relationship and solve for matched full-capacity estimate.

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Battery Round-Trip Energy Efficiency

Calculate round-trip efficiency percentage from electrical energy returned on discharge and electrical energy supplied during charge.

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Battery Round-Trip Energy Efficiency: solve electrical energy returned on discharge

Rearrange the battery round-trip energy efficiency relationship and solve for electrical energy returned on discharge.

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Battery Round-Trip Energy Efficiency: solve electrical energy supplied during charge

Rearrange the battery round-trip energy efficiency relationship and solve for electrical energy supplied during charge.

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Statistics

Battery Gravimetric Specific Energy

Calculate energy per unit mass from stored or usable battery energy and battery-system mass.

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Battery Gravimetric Specific Energy: solve stored or usable battery energy

Rearrange the battery gravimetric specific energy relationship and solve for stored or usable battery energy.

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Battery Gravimetric Specific Energy: solve battery-system mass

Rearrange the battery gravimetric specific energy relationship and solve for battery-system mass.

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Statistics

Livestock Dry-Matter Intake as Body-Mass Percentage

Calculate daily dry-matter intake percentage from daily feed dry-matter intake and animal live body mass.

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Livestock Dry-Matter Intake as Body-Mass Percentage: solve daily feed dry-matter intake

Rearrange the livestock dry-matter intake as body-mass percentage relationship and solve for daily feed dry-matter intake.

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Livestock Dry-Matter Intake as Body-Mass Percentage: solve animal live body mass

Rearrange the livestock dry-matter intake as body-mass percentage relationship and solve for animal live body mass.

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