topic Re: Subtraction in formula in ArcGIS Survey123 Questions https://community.esri.com/t5/arcgis-survey123-questions/subtraction-in-formula/m-p/850454#M23271 <HTML><HEAD></HEAD><BODY><P>Hi Jason,</P><P>try something like this:</P><P>${gpm_flow} * (pow(${flwhyd_static_pressure_psi}-20,0.54)<STRONG>/</STRONG>pow(${flwhyd_static_pressure_psi}-${reshyd_pressure_psi}, 0.54))</P><P>Cheers</P><P></P><P>Stefano</P></BODY></HTML> Wed, 03 Jun 2020 09:10:38 GMT SMauri 2020-06-03T09:10:38Z Subtraction in formula https://community.esri.com/t5/arcgis-survey123-questions/subtraction-in-formula/m-p/850453#M23270 <HTML><HEAD></HEAD><BODY><P>I am currently attempting to create a field based on a mathematical formula but the formula is getting held up do to the subtraction sign. I know this because I have performed calculations on other parts of the formula with no issue. The formula is shown below and the part I believe is causing issues is in bold. Thanks in advance.&nbsp;</P><P></P><P>${gpm_flow} *<STRONG> pow(${flwhyd_static_pressure_psi}-20,0.54)</STRONG> div pow(${flwhyd_static_pressure_psi},0.54 - pow(${reshyd_pressure_psi}, 0.54)</P><P></P><P>The formula I am attempting is&nbsp;</P><P></P><P><IMG class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/494023_pastedImage_2.png" /></P></BODY></HTML> Mon, 01 Jun 2020 18:36:46 GMT https://community.esri.com/t5/arcgis-survey123-questions/subtraction-in-formula/m-p/850453#M23270 JasonSimpson 2020-06-01T18:36:46Z Re: Subtraction in formula https://community.esri.com/t5/arcgis-survey123-questions/subtraction-in-formula/m-p/850454#M23271 <HTML><HEAD></HEAD><BODY><P>Hi Jason,</P><P>try something like this:</P><P>${gpm_flow} * (pow(${flwhyd_static_pressure_psi}-20,0.54)<STRONG>/</STRONG>pow(${flwhyd_static_pressure_psi}-${reshyd_pressure_psi}, 0.54))</P><P>Cheers</P><P></P><P>Stefano</P></BODY></HTML> Wed, 03 Jun 2020 09:10:38 GMT https://community.esri.com/t5/arcgis-survey123-questions/subtraction-in-formula/m-p/850454#M23271 SMauri 2020-06-03T09:10:38Z